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		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define([], factory);
	else if(typeof exports === 'object')
		exports["Dokbot"] = factory();
	else
		root["Dokbot"] = factory();
})((typeof self !== 'undefined' ? self : this), function() {
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/***/ "0748":
/***/ (function(module, exports, __webpack_require__) {

exports = module.exports = __webpack_require__("2350")(false);
// imports


// module
exports.push([module.i, ".dokbot-bootstrap-container{margin:auto;position:fixed;width:100%;height:100%;max-width:375px;display:none;z-index:1000002;top:0;left:0;right:0;bottom:0}.dokbot-bootstrap-container.ready{display:initial;opacity:0;animation:dokbot-fade-in-100 .5s ease-in 1 forwards}.dokbot-bootstrap-overlay{position:fixed;top:0;left:0;right:0;bottom:0;z-index:1000001;background:var(--components-overlay-background,radial-gradient(rgba(20,20,20,.9),rgba(20,20,20,.95)))}.dokbot-bootstrap-overlay.closeable:after{content:\"\\D7\";position:fixed;font-size:80px;top:30px;right:30px;color:hsla(0,0%,100%,.7);font-weight:700;cursor:pointer;opacity:0;animation:dokbot-fade-in-100 1s ease-in 1s 1 forwards}@media (max-width:539px){.dokbot-bootstrap-overlay.closeable:after{display:none}}.dokbot-bootstrap-overlay:before{position:fixed;content:\"\";top:0;left:0;right:0;bottom:0;z-index:1000001;background:#293652;opacity:1;pointer-events:none;animation:dokbot-fade-out 1s ease-in 1 forwards}.dokbot-bootstrap-container.dokbot-immediate,.dokbot-bootstrap-overlay.dokbot-immediate:after,.dokbot-bootstrap-overlay.dokbot-immediate:before{animation-duration:0s}.dokbot-bootstrap-exploder{position:fixed;animation:dokbot-explode 1s ease-in-out 1 forwards;background-color:var(--dokbot-explosion-color,#333);border-radius:100%;z-index:1000000}.dokbot-bootstrap-exploder>*{animation:dokbot-fade-out .5s ease .25s 1 forwards!important;pointer-events:none!important}@media (min-width:540px){.dokbot-bootstrap-container{max-height:640px}}@keyframes dokbot-fade-in-100{0%{opacity:0}to{opacity:1}}@keyframes dokbot-fade-out{0%{opacity:1}to{opacity:0}}@keyframes dokbot-explode{0%{margin:0;padding:0}to{margin:-125%;padding:125%}}", ""]);

// exports


/***/ }),

/***/ "160b":
/***/ (function(module, exports, __webpack_require__) {

//     JavaScript Expression Parser (JSEP) 0.3.5
//     JSEP may be freely distributed under the MIT License
//     https://ericsmekens.github.io/jsep/

/*global module: true, exports: true, console: true */
(function (root) {
	'use strict';
	// Node Types
	// ----------

	// This is the full set of types that any JSEP node can be.
	// Store them here to save space when minified
	var COMPOUND = 'Compound',
		IDENTIFIER = 'Identifier',
		MEMBER_EXP = 'MemberExpression',
		LITERAL = 'Literal',
		THIS_EXP = 'ThisExpression',
		CALL_EXP = 'CallExpression',
		UNARY_EXP = 'UnaryExpression',
		BINARY_EXP = 'BinaryExpression',
		LOGICAL_EXP = 'LogicalExpression',
		CONDITIONAL_EXP = 'ConditionalExpression',
		ARRAY_EXP = 'ArrayExpression',

		PERIOD_CODE = 46, // '.'
		COMMA_CODE  = 44, // ','
		SQUOTE_CODE = 39, // single quote
		DQUOTE_CODE = 34, // double quotes
		OPAREN_CODE = 40, // (
		CPAREN_CODE = 41, // )
		OBRACK_CODE = 91, // [
		CBRACK_CODE = 93, // ]
		QUMARK_CODE = 63, // ?
		SEMCOL_CODE = 59, // ;
		COLON_CODE  = 58, // :

		throwError = function(message, index) {
			var error = new Error(message + ' at character ' + index);
			error.index = index;
			error.description = message;
			throw error;
		},

	// Operations
	// ----------

	// Set `t` to `true` to save space (when minified, not gzipped)
		t = true,
	// Use a quickly-accessible map to store all of the unary operators
	// Values are set to `true` (it really doesn't matter)
		unary_ops = {'-': t, '!': t, '~': t, '+': t},
	// Also use a map for the binary operations but set their values to their
	// binary precedence for quick reference:
	// see [Order of operations](http://en.wikipedia.org/wiki/Order_of_operations#Programming_language)
		binary_ops = {
			'||': 1, '&&': 2, '|': 3,  '^': 4,  '&': 5,
			'==': 6, '!=': 6, '===': 6, '!==': 6,
			'<': 7,  '>': 7,  '<=': 7,  '>=': 7,
			'<<':8,  '>>': 8, '>>>': 8,
			'+': 9, '-': 9,
			'*': 10, '/': 10, '%': 10
		},
	// Get return the longest key length of any object
		getMaxKeyLen = function(obj) {
			var max_len = 0, len;
			for(var key in obj) {
				if((len = key.length) > max_len && obj.hasOwnProperty(key)) {
					max_len = len;
				}
			}
			return max_len;
		},
		max_unop_len = getMaxKeyLen(unary_ops),
		max_binop_len = getMaxKeyLen(binary_ops),
	// Literals
	// ----------
	// Store the values to return for the various literals we may encounter
		literals = {
			'true': true,
			'false': false,
			'null': null
		},
	// Except for `this`, which is special. This could be changed to something like `'self'` as well
		this_str = 'this',
	// Returns the precedence of a binary operator or `0` if it isn't a binary operator
		binaryPrecedence = function(op_val) {
			return binary_ops[op_val] || 0;
		},
	// Utility function (gets called from multiple places)
	// Also note that `a && b` and `a || b` are *logical* expressions, not binary expressions
		createBinaryExpression = function (operator, left, right) {
			var type = (operator === '||' || operator === '&&') ? LOGICAL_EXP : BINARY_EXP;
			return {
				type: type,
				operator: operator,
				left: left,
				right: right
			};
		},
		// `ch` is a character code in the next three functions
		isDecimalDigit = function(ch) {
			return (ch >= 48 && ch <= 57); // 0...9
		},
		isIdentifierStart = function(ch) {
			return (ch === 36) || (ch === 95) || // `$` and `_`
					(ch >= 65 && ch <= 90) || // A...Z
					(ch >= 97 && ch <= 122) || // a...z
                    (ch >= 128 && !binary_ops[String.fromCharCode(ch)]); // any non-ASCII that is not an operator
		},
		isIdentifierPart = function(ch) {
			return (ch === 36) || (ch === 95) || // `$` and `_`
					(ch >= 65 && ch <= 90) || // A...Z
					(ch >= 97 && ch <= 122) || // a...z
					(ch >= 48 && ch <= 57) || // 0...9
                    (ch >= 128 && !binary_ops[String.fromCharCode(ch)]); // any non-ASCII that is not an operator
		},

		// Parsing
		// -------
		// `expr` is a string with the passed in expression
		jsep = function(expr) {
			// `index` stores the character number we are currently at while `length` is a constant
			// All of the gobbles below will modify `index` as we move along
			var index = 0,
				charAtFunc = expr.charAt,
				charCodeAtFunc = expr.charCodeAt,
				exprI = function(i) { return charAtFunc.call(expr, i); },
				exprICode = function(i) { return charCodeAtFunc.call(expr, i); },
				length = expr.length,

				// Push `index` up to the next non-space character
				gobbleSpaces = function() {
					var ch = exprICode(index);
					// space or tab
					while(ch === 32 || ch === 9 || ch === 10 || ch === 13) {
						ch = exprICode(++index);
					}
				},

				// The main parsing function. Much of this code is dedicated to ternary expressions
				gobbleExpression = function() {
					var test = gobbleBinaryExpression(),
						consequent, alternate;
					gobbleSpaces();
					if(exprICode(index) === QUMARK_CODE) {
						// Ternary expression: test ? consequent : alternate
						index++;
						consequent = gobbleExpression();
						if(!consequent) {
							throwError('Expected expression', index);
						}
						gobbleSpaces();
						if(exprICode(index) === COLON_CODE) {
							index++;
							alternate = gobbleExpression();
							if(!alternate) {
								throwError('Expected expression', index);
							}
							return {
								type: CONDITIONAL_EXP,
								test: test,
								consequent: consequent,
								alternate: alternate
							};
						} else {
							throwError('Expected :', index);
						}
					} else {
						return test;
					}
				},

				// Search for the operation portion of the string (e.g. `+`, `===`)
				// Start by taking the longest possible binary operations (3 characters: `===`, `!==`, `>>>`)
				// and move down from 3 to 2 to 1 character until a matching binary operation is found
				// then, return that binary operation
				gobbleBinaryOp = function() {
					gobbleSpaces();
					var biop, to_check = expr.substr(index, max_binop_len), tc_len = to_check.length;
					while(tc_len > 0) {
						// Don't accept a binary op when it is an identifier.
						// Binary ops that start with a identifier-valid character must be followed
						// by a non identifier-part valid character
						if(binary_ops.hasOwnProperty(to_check) && (
							!isIdentifierStart(exprICode(index)) ||
							(index+to_check.length< expr.length && !isIdentifierPart(exprICode(index+to_check.length)))
						)) {
							index += tc_len;
							return to_check;
						}
						to_check = to_check.substr(0, --tc_len);
					}
					return false;
				},

				// This function is responsible for gobbling an individual expression,
				// e.g. `1`, `1+2`, `a+(b*2)-Math.sqrt(2)`
				gobbleBinaryExpression = function() {
					var ch_i, node, biop, prec, stack, biop_info, left, right, i, cur_biop;

					// First, try to get the leftmost thing
					// Then, check to see if there's a binary operator operating on that leftmost thing
					left = gobbleToken();
					biop = gobbleBinaryOp();

					// If there wasn't a binary operator, just return the leftmost node
					if(!biop) {
						return left;
					}

					// Otherwise, we need to start a stack to properly place the binary operations in their
					// precedence structure
					biop_info = { value: biop, prec: binaryPrecedence(biop)};

					right = gobbleToken();
					if(!right) {
						throwError("Expected expression after " + biop, index);
					}
					stack = [left, biop_info, right];

					// Properly deal with precedence using [recursive descent](http://www.engr.mun.ca/~theo/Misc/exp_parsing.htm)
					while((biop = gobbleBinaryOp())) {
						prec = binaryPrecedence(biop);

						if(prec === 0) {
							break;
						}
						biop_info = { value: biop, prec: prec };

						cur_biop = biop;
						// Reduce: make a binary expression from the three topmost entries.
						while ((stack.length > 2) && (prec <= stack[stack.length - 2].prec)) {
							right = stack.pop();
							biop = stack.pop().value;
							left = stack.pop();
							node = createBinaryExpression(biop, left, right);
							stack.push(node);
						}

						node = gobbleToken();
						if(!node) {
							throwError("Expected expression after " + cur_biop, index);
						}
						stack.push(biop_info, node);
					}

					i = stack.length - 1;
					node = stack[i];
					while(i > 1) {
						node = createBinaryExpression(stack[i - 1].value, stack[i - 2], node);
						i -= 2;
					}
					return node;
				},

				// An individual part of a binary expression:
				// e.g. `foo.bar(baz)`, `1`, `"abc"`, `(a % 2)` (because it's in parenthesis)
				gobbleToken = function() {
					var ch, to_check, tc_len;

					gobbleSpaces();
					ch = exprICode(index);

					if(isDecimalDigit(ch) || ch === PERIOD_CODE) {
						// Char code 46 is a dot `.` which can start off a numeric literal
						return gobbleNumericLiteral();
					} else if(ch === SQUOTE_CODE || ch === DQUOTE_CODE) {
						// Single or double quotes
						return gobbleStringLiteral();
					} else if (ch === OBRACK_CODE) {
						return gobbleArray();
					} else {
						to_check = expr.substr(index, max_unop_len);
						tc_len = to_check.length;
						while(tc_len > 0) {
						// Don't accept an unary op when it is an identifier.
						// Unary ops that start with a identifier-valid character must be followed
						// by a non identifier-part valid character
							if(unary_ops.hasOwnProperty(to_check) && (
								!isIdentifierStart(exprICode(index)) ||
								(index+to_check.length < expr.length && !isIdentifierPart(exprICode(index+to_check.length)))
							)) {
								index += tc_len;
								return {
									type: UNARY_EXP,
									operator: to_check,
									argument: gobbleToken(),
									prefix: true
								};
							}
							to_check = to_check.substr(0, --tc_len);
						}

						if (isIdentifierStart(ch) || ch === OPAREN_CODE) { // open parenthesis
							// `foo`, `bar.baz`
							return gobbleVariable();
						}
					}

					return false;
				},
				// Parse simple numeric literals: `12`, `3.4`, `.5`. Do this by using a string to
				// keep track of everything in the numeric literal and then calling `parseFloat` on that string
				gobbleNumericLiteral = function() {
					var number = '', ch, chCode;
					while(isDecimalDigit(exprICode(index))) {
						number += exprI(index++);
					}

					if(exprICode(index) === PERIOD_CODE) { // can start with a decimal marker
						number += exprI(index++);

						while(isDecimalDigit(exprICode(index))) {
							number += exprI(index++);
						}
					}

					ch = exprI(index);
					if(ch === 'e' || ch === 'E') { // exponent marker
						number += exprI(index++);
						ch = exprI(index);
						if(ch === '+' || ch === '-') { // exponent sign
							number += exprI(index++);
						}
						while(isDecimalDigit(exprICode(index))) { //exponent itself
							number += exprI(index++);
						}
						if(!isDecimalDigit(exprICode(index-1)) ) {
							throwError('Expected exponent (' + number + exprI(index) + ')', index);
						}
					}


					chCode = exprICode(index);
					// Check to make sure this isn't a variable name that start with a number (123abc)
					if(isIdentifierStart(chCode)) {
						throwError('Variable names cannot start with a number (' +
									number + exprI(index) + ')', index);
					} else if(chCode === PERIOD_CODE) {
						throwError('Unexpected period', index);
					}

					return {
						type: LITERAL,
						value: parseFloat(number),
						raw: number
					};
				},

				// Parses a string literal, staring with single or double quotes with basic support for escape codes
				// e.g. `"hello world"`, `'this is\nJSEP'`
				gobbleStringLiteral = function() {
					var str = '', quote = exprI(index++), closed = false, ch;

					while(index < length) {
						ch = exprI(index++);
						if(ch === quote) {
							closed = true;
							break;
						} else if(ch === '\\') {
							// Check for all of the common escape codes
							ch = exprI(index++);
							switch(ch) {
								case 'n': str += '\n'; break;
								case 'r': str += '\r'; break;
								case 't': str += '\t'; break;
								case 'b': str += '\b'; break;
								case 'f': str += '\f'; break;
								case 'v': str += '\x0B'; break;
								default : str += ch;
							}
						} else {
							str += ch;
						}
					}

					if(!closed) {
						throwError('Unclosed quote after "'+str+'"', index);
					}

					return {
						type: LITERAL,
						value: str,
						raw: quote + str + quote
					};
				},

				// Gobbles only identifiers
				// e.g.: `foo`, `_value`, `$x1`
				// Also, this function checks if that identifier is a literal:
				// (e.g. `true`, `false`, `null`) or `this`
				gobbleIdentifier = function() {
					var ch = exprICode(index), start = index, identifier;

					if(isIdentifierStart(ch)) {
						index++;
					} else {
						throwError('Unexpected ' + exprI(index), index);
					}

					while(index < length) {
						ch = exprICode(index);
						if(isIdentifierPart(ch)) {
							index++;
						} else {
							break;
						}
					}
					identifier = expr.slice(start, index);

					if(literals.hasOwnProperty(identifier)) {
						return {
							type: LITERAL,
							value: literals[identifier],
							raw: identifier
						};
					} else if(identifier === this_str) {
						return { type: THIS_EXP };
					} else {
						return {
							type: IDENTIFIER,
							name: identifier
						};
					}
				},

				// Gobbles a list of arguments within the context of a function call
				// or array literal. This function also assumes that the opening character
				// `(` or `[` has already been gobbled, and gobbles expressions and commas
				// until the terminator character `)` or `]` is encountered.
				// e.g. `foo(bar, baz)`, `my_func()`, or `[bar, baz]`
				gobbleArguments = function(termination) {
					var ch_i, args = [], node, closed = false;
					var separator_count = 0;
					while(index < length) {
						gobbleSpaces();
						ch_i = exprICode(index);
						if(ch_i === termination) { // done parsing
							closed = true;
							index++;
							if(termination === CPAREN_CODE && separator_count && separator_count >= args.length){
								throwError('Unexpected token ' + String.fromCharCode(termination), index);
							}
							break;
						} else if (ch_i === COMMA_CODE) { // between expressions
							index++;
							separator_count++;
							if(separator_count !== args.length) { // missing argument
								if(termination === CPAREN_CODE) {
									throwError('Unexpected token ,', index);
								}
								else if(termination === CBRACK_CODE) {
									for(var arg = args.length; arg< separator_count; arg++) {
										args.push(null);
									}
								}
							}
						} else {
							node = gobbleExpression();
							if(!node || node.type === COMPOUND) {
								throwError('Expected comma', index);
							}
							args.push(node);
						}
					}
					if (!closed) {
						throwError('Expected ' + String.fromCharCode(termination), index);
					}
					return args;
				},

				// Gobble a non-literal variable name. This variable name may include properties
				// e.g. `foo`, `bar.baz`, `foo['bar'].baz`
				// It also gobbles function calls:
				// e.g. `Math.acos(obj.angle)`
				gobbleVariable = function() {
					var ch_i, node;
					ch_i = exprICode(index);

					if(ch_i === OPAREN_CODE) {
						node = gobbleGroup();
					} else {
						node = gobbleIdentifier();
					}
					gobbleSpaces();
					ch_i = exprICode(index);
					while(ch_i === PERIOD_CODE || ch_i === OBRACK_CODE || ch_i === OPAREN_CODE) {
						index++;
						if(ch_i === PERIOD_CODE) {
							gobbleSpaces();
							node = {
								type: MEMBER_EXP,
								computed: false,
								object: node,
								property: gobbleIdentifier()
							};
						} else if(ch_i === OBRACK_CODE) {
							node = {
								type: MEMBER_EXP,
								computed: true,
								object: node,
								property: gobbleExpression()
							};
							gobbleSpaces();
							ch_i = exprICode(index);
							if(ch_i !== CBRACK_CODE) {
								throwError('Unclosed [', index);
							}
							index++;
						} else if(ch_i === OPAREN_CODE) {
							// A function call is being made; gobble all the arguments
							node = {
								type: CALL_EXP,
								'arguments': gobbleArguments(CPAREN_CODE),
								callee: node
							};
						}
						gobbleSpaces();
						ch_i = exprICode(index);
					}
					return node;
				},

				// Responsible for parsing a group of things within parentheses `()`
				// This function assumes that it needs to gobble the opening parenthesis
				// and then tries to gobble everything within that parenthesis, assuming
				// that the next thing it should see is the close parenthesis. If not,
				// then the expression probably doesn't have a `)`
				gobbleGroup = function() {
					index++;
					var node = gobbleExpression();
					gobbleSpaces();
					if(exprICode(index) === CPAREN_CODE) {
						index++;
						return node;
					} else {
						throwError('Unclosed (', index);
					}
				},

				// Responsible for parsing Array literals `[1, 2, 3]`
				// This function assumes that it needs to gobble the opening bracket
				// and then tries to gobble the expressions as arguments.
				gobbleArray = function() {
					index++;
					return {
						type: ARRAY_EXP,
						elements: gobbleArguments(CBRACK_CODE)
					};
				},

				nodes = [], ch_i, node;

			while(index < length) {
				ch_i = exprICode(index);

				// Expressions can be separated by semicolons, commas, or just inferred without any
				// separators
				if(ch_i === SEMCOL_CODE || ch_i === COMMA_CODE) {
					index++; // ignore separators
				} else {
					// Try to gobble each expression individually
					if((node = gobbleExpression())) {
						nodes.push(node);
					// If we weren't able to find a binary expression and are out of room, then
					// the expression passed in probably has too much
					} else if(index < length) {
						throwError('Unexpected "' + exprI(index) + '"', index);
					}
				}
			}

			// If there's only one expression just try returning the expression
			if(nodes.length === 1) {
				return nodes[0];
			} else {
				return {
					type: COMPOUND,
					body: nodes
				};
			}
		};

	// To be filled in by the template
	jsep.version = '0.3.5';
	jsep.toString = function() { return 'JavaScript Expression Parser (JSEP) v' + jsep.version; };

	/**
	 * @method jsep.addUnaryOp
	 * @param {string} op_name The name of the unary op to add
	 * @return jsep
	 */
	jsep.addUnaryOp = function(op_name) {
		max_unop_len = Math.max(op_name.length, max_unop_len);
		unary_ops[op_name] = t; return this;
	};

	/**
	 * @method jsep.addBinaryOp
	 * @param {string} op_name The name of the binary op to add
	 * @param {number} precedence The precedence of the binary op (can be a float)
	 * @return jsep
	 */
	jsep.addBinaryOp = function(op_name, precedence) {
		max_binop_len = Math.max(op_name.length, max_binop_len);
		binary_ops[op_name] = precedence;
		return this;
	};

	/**
	 * @method jsep.addLiteral
	 * @param {string} literal_name The name of the literal to add
	 * @param {*} literal_value The value of the literal
	 * @return jsep
	 */
	jsep.addLiteral = function(literal_name, literal_value) {
		literals[literal_name] = literal_value;
		return this;
	};

	/**
	 * @method jsep.removeUnaryOp
	 * @param {string} op_name The name of the unary op to remove
	 * @return jsep
	 */
	jsep.removeUnaryOp = function(op_name) {
		delete unary_ops[op_name];
		if(op_name.length === max_unop_len) {
			max_unop_len = getMaxKeyLen(unary_ops);
		}
		return this;
	};

	/**
	 * @method jsep.removeAllUnaryOps
	 * @return jsep
	 */
	jsep.removeAllUnaryOps = function() {
		unary_ops = {};
		max_unop_len = 0;

		return this;
	};

	/**
	 * @method jsep.removeBinaryOp
	 * @param {string} op_name The name of the binary op to remove
	 * @return jsep
	 */
	jsep.removeBinaryOp = function(op_name) {
		delete binary_ops[op_name];
		if(op_name.length === max_binop_len) {
			max_binop_len = getMaxKeyLen(binary_ops);
		}
		return this;
	};

	/**
	 * @method jsep.removeAllBinaryOps
	 * @return jsep
	 */
	jsep.removeAllBinaryOps = function() {
		binary_ops = {};
		max_binop_len = 0;

		return this;
	};

	/**
	 * @method jsep.removeLiteral
	 * @param {string} literal_name The name of the literal to remove
	 * @return jsep
	 */
	jsep.removeLiteral = function(literal_name) {
		delete literals[literal_name];
		return this;
	};

	/**
	 * @method jsep.removeAllLiterals
	 * @return jsep
	 */
	jsep.removeAllLiterals = function() {
		literals = {};

		return this;
	};

	// In desktop environments, have a way to restore the old value for `jsep`
	if (false) { var old_jsep; } else {
		// In Node.JS environments
		if ( true && module.exports) {
			exports = module.exports = jsep;
		} else {
			exports.parse = jsep;
		}
	}
}(this));


/***/ }),

/***/ "1fb5":
/***/ (function(module, exports, __webpack_require__) {

"use strict";


exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray

var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array

var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
  lookup[i] = code[i]
  revLookup[code.charCodeAt(i)] = i
}

// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63

function getLens (b64) {
  var len = b64.length

  if (len % 4 > 0) {
    throw new Error('Invalid string. Length must be a multiple of 4')
  }

  // Trim off extra bytes after placeholder bytes are found
  // See: https://github.com/beatgammit/base64-js/issues/42
  var validLen = b64.indexOf('=')
  if (validLen === -1) validLen = len

  var placeHoldersLen = validLen === len
    ? 0
    : 4 - (validLen % 4)

  return [validLen, placeHoldersLen]
}

// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function _byteLength (b64, validLen, placeHoldersLen) {
  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}

function toByteArray (b64) {
  var tmp
  var lens = getLens(b64)
  var validLen = lens[0]
  var placeHoldersLen = lens[1]

  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))

  var curByte = 0

  // if there are placeholders, only get up to the last complete 4 chars
  var len = placeHoldersLen > 0
    ? validLen - 4
    : validLen

  var i
  for (i = 0; i < len; i += 4) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 18) |
      (revLookup[b64.charCodeAt(i + 1)] << 12) |
      (revLookup[b64.charCodeAt(i + 2)] << 6) |
      revLookup[b64.charCodeAt(i + 3)]
    arr[curByte++] = (tmp >> 16) & 0xFF
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 2) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 2) |
      (revLookup[b64.charCodeAt(i + 1)] >> 4)
    arr[curByte++] = tmp & 0xFF
  }

  if (placeHoldersLen === 1) {
    tmp =
      (revLookup[b64.charCodeAt(i)] << 10) |
      (revLookup[b64.charCodeAt(i + 1)] << 4) |
      (revLookup[b64.charCodeAt(i + 2)] >> 2)
    arr[curByte++] = (tmp >> 8) & 0xFF
    arr[curByte++] = tmp & 0xFF
  }

  return arr
}

function tripletToBase64 (num) {
  return lookup[num >> 18 & 0x3F] +
    lookup[num >> 12 & 0x3F] +
    lookup[num >> 6 & 0x3F] +
    lookup[num & 0x3F]
}

function encodeChunk (uint8, start, end) {
  var tmp
  var output = []
  for (var i = start; i < end; i += 3) {
    tmp =
      ((uint8[i] << 16) & 0xFF0000) +
      ((uint8[i + 1] << 8) & 0xFF00) +
      (uint8[i + 2] & 0xFF)
    output.push(tripletToBase64(tmp))
  }
  return output.join('')
}

function fromByteArray (uint8) {
  var tmp
  var len = uint8.length
  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
  var parts = []
  var maxChunkLength = 16383 // must be multiple of 3

  // go through the array every three bytes, we'll deal with trailing stuff later
  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
    parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
  }

  // pad the end with zeros, but make sure to not forget the extra bytes
  if (extraBytes === 1) {
    tmp = uint8[len - 1]
    parts.push(
      lookup[tmp >> 2] +
      lookup[(tmp << 4) & 0x3F] +
      '=='
    )
  } else if (extraBytes === 2) {
    tmp = (uint8[len - 2] << 8) + uint8[len - 1]
    parts.push(
      lookup[tmp >> 10] +
      lookup[(tmp >> 4) & 0x3F] +
      lookup[(tmp << 2) & 0x3F] +
      '='
    )
  }

  return parts.join('')
}


/***/ }),

/***/ "2350":
/***/ (function(module, exports) {

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/
// css base code, injected by the css-loader
module.exports = function(useSourceMap) {
	var list = [];

	// return the list of modules as css string
	list.toString = function toString() {
		return this.map(function (item) {
			var content = cssWithMappingToString(item, useSourceMap);
			if(item[2]) {
				return "@media " + item[2] + "{" + content + "}";
			} else {
				return content;
			}
		}).join("");
	};

	// import a list of modules into the list
	list.i = function(modules, mediaQuery) {
		if(typeof modules === "string")
			modules = [[null, modules, ""]];
		var alreadyImportedModules = {};
		for(var i = 0; i < this.length; i++) {
			var id = this[i][0];
			if(typeof id === "number")
				alreadyImportedModules[id] = true;
		}
		for(i = 0; i < modules.length; i++) {
			var item = modules[i];
			// skip already imported module
			// this implementation is not 100% perfect for weird media query combinations
			//  when a module is imported multiple times with different media queries.
			//  I hope this will never occur (Hey this way we have smaller bundles)
			if(typeof item[0] !== "number" || !alreadyImportedModules[item[0]]) {
				if(mediaQuery && !item[2]) {
					item[2] = mediaQuery;
				} else if(mediaQuery) {
					item[2] = "(" + item[2] + ") and (" + mediaQuery + ")";
				}
				list.push(item);
			}
		}
	};
	return list;
};

function cssWithMappingToString(item, useSourceMap) {
	var content = item[1] || '';
	var cssMapping = item[3];
	if (!cssMapping) {
		return content;
	}

	if (useSourceMap && typeof btoa === 'function') {
		var sourceMapping = toComment(cssMapping);
		var sourceURLs = cssMapping.sources.map(function (source) {
			return '/*# sourceURL=' + cssMapping.sourceRoot + source + ' */'
		});

		return [content].concat(sourceURLs).concat([sourceMapping]).join('\n');
	}

	return [content].join('\n');
}

// Adapted from convert-source-map (MIT)
function toComment(sourceMap) {
	// eslint-disable-next-line no-undef
	var base64 = btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))));
	var data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;

	return '/*# ' + data + ' */';
}


/***/ }),

/***/ "2ef0":
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global, module) {var __WEBPACK_AMD_DEFINE_RESULT__;/**
 * @license
 * Lodash <https://lodash.com/>
 * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */
;(function() {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /** Used as the semantic version number. */
  var VERSION = '4.17.21';

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /** Error message constants. */
  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
      FUNC_ERROR_TEXT = 'Expected a function',
      INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';

  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /** Used as the maximum memoize cache size. */
  var MAX_MEMOIZE_SIZE = 500;

  /** Used as the internal argument placeholder. */
  var PLACEHOLDER = '__lodash_placeholder__';

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1,
      CLONE_FLAT_FLAG = 2,
      CLONE_SYMBOLS_FLAG = 4;

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /** Used to compose bitmasks for function metadata. */
  var WRAP_BIND_FLAG = 1,
      WRAP_BIND_KEY_FLAG = 2,
      WRAP_CURRY_BOUND_FLAG = 4,
      WRAP_CURRY_FLAG = 8,
      WRAP_CURRY_RIGHT_FLAG = 16,
      WRAP_PARTIAL_FLAG = 32,
      WRAP_PARTIAL_RIGHT_FLAG = 64,
      WRAP_ARY_FLAG = 128,
      WRAP_REARG_FLAG = 256,
      WRAP_FLIP_FLAG = 512;

  /** Used as default options for `_.truncate`. */
  var DEFAULT_TRUNC_LENGTH = 30,
      DEFAULT_TRUNC_OMISSION = '...';

  /** Used to detect hot functions by number of calls within a span of milliseconds. */
  var HOT_COUNT = 800,
      HOT_SPAN = 16;

  /** Used to indicate the type of lazy iteratees. */
  var LAZY_FILTER_FLAG = 1,
      LAZY_MAP_FLAG = 2,
      LAZY_WHILE_FLAG = 3;

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0,
      MAX_SAFE_INTEGER = 9007199254740991,
      MAX_INTEGER = 1.7976931348623157e+308,
      NAN = 0 / 0;

  /** Used as references for the maximum length and index of an array. */
  var MAX_ARRAY_LENGTH = 4294967295,
      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;

  /** Used to associate wrap methods with their bit flags. */
  var wrapFlags = [
    ['ary', WRAP_ARY_FLAG],
    ['bind', WRAP_BIND_FLAG],
    ['bindKey', WRAP_BIND_KEY_FLAG],
    ['curry', WRAP_CURRY_FLAG],
    ['curryRight', WRAP_CURRY_RIGHT_FLAG],
    ['flip', WRAP_FLIP_FLAG],
    ['partial', WRAP_PARTIAL_FLAG],
    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
    ['rearg', WRAP_REARG_FLAG]
  ];

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      asyncTag = '[object AsyncFunction]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      domExcTag = '[object DOMException]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      genTag = '[object GeneratorFunction]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      nullTag = '[object Null]',
      objectTag = '[object Object]',
      promiseTag = '[object Promise]',
      proxyTag = '[object Proxy]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]',
      undefinedTag = '[object Undefined]',
      weakMapTag = '[object WeakMap]',
      weakSetTag = '[object WeakSet]';

  var arrayBufferTag = '[object ArrayBuffer]',
      dataViewTag = '[object DataView]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to match empty string literals in compiled template source. */
  var reEmptyStringLeading = /\b__p \+= '';/g,
      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

  /** Used to match HTML entities and HTML characters. */
  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
      reUnescapedHtml = /[&<>"']/g,
      reHasEscapedHtml = RegExp(reEscapedHtml.source),
      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);

  /** Used to match template delimiters. */
  var reEscape = /<%-([\s\S]+?)%>/g,
      reEvaluate = /<%([\s\S]+?)%>/g,
      reInterpolate = /<%=([\s\S]+?)%>/g;

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;

  /**
   * Used to match `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
      reHasRegExpChar = RegExp(reRegExpChar.source);

  /** Used to match leading whitespace. */
  var reTrimStart = /^\s+/;

  /** Used to match a single whitespace character. */
  var reWhitespace = /\s/;

  /** Used to match wrap detail comments. */
  var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
      reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
      reSplitDetails = /,? & /;

  /** Used to match words composed of alphanumeric characters. */
  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;

  /**
   * Used to validate the `validate` option in `_.template` variable.
   *
   * Forbids characters which could potentially change the meaning of the function argument definition:
   * - "()," (modification of function parameters)
   * - "=" (default value)
   * - "[]{}" (destructuring of function parameters)
   * - "/" (beginning of a comment)
   * - whitespace
   */
  var reForbiddenIdentifierChars = /[()=,{}\[\]\/\s]/;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /**
   * Used to match
   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
   */
  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /** Used to detect bad signed hexadecimal string values. */
  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

  /** Used to detect binary string values. */
  var reIsBinary = /^0b[01]+$/i;

  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Used to detect octal string values. */
  var reIsOctal = /^0o[0-7]+$/i;

  /** Used to detect unsigned integer values. */
  var reIsUint = /^(?:0|[1-9]\d*)$/;

  /** Used to match Latin Unicode letters (excluding mathematical operators). */
  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;

  /** Used to ensure capturing order of template delimiters. */
  var reNoMatch = /($^)/;

  /** Used to match unescaped characters in compiled string literals. */
  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

  /** Used to compose unicode character classes. */
  var rsAstralRange = '\\ud800-\\udfff',
      rsComboMarksRange = '\\u0300-\\u036f',
      reComboHalfMarksRange = '\\ufe20-\\ufe2f',
      rsComboSymbolsRange = '\\u20d0-\\u20ff',
      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
      rsDingbatRange = '\\u2700-\\u27bf',
      rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
      rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
      rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
      rsPunctuationRange = '\\u2000-\\u206f',
      rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
      rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
      rsVarRange = '\\ufe0e\\ufe0f',
      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;

  /** Used to compose unicode capture groups. */
  var rsApos = "['\u2019]",
      rsAstral = '[' + rsAstralRange + ']',
      rsBreak = '[' + rsBreakRange + ']',
      rsCombo = '[' + rsComboRange + ']',
      rsDigits = '\\d+',
      rsDingbat = '[' + rsDingbatRange + ']',
      rsLower = '[' + rsLowerRange + ']',
      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
      rsFitz = '\\ud83c[\\udffb-\\udfff]',
      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
      rsNonAstral = '[^' + rsAstralRange + ']',
      rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
      rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
      rsUpper = '[' + rsUpperRange + ']',
      rsZWJ = '\\u200d';

  /** Used to compose unicode regexes. */
  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
      reOptMod = rsModifier + '?',
      rsOptVar = '[' + rsVarRange + ']?',
      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
      rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
      rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
      rsSeq = rsOptVar + reOptMod + rsOptJoin,
      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';

  /** Used to match apostrophes. */
  var reApos = RegExp(rsApos, 'g');

  /**
   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
   */
  var reComboMark = RegExp(rsCombo, 'g');

  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');

  /** Used to match complex or compound words. */
  var reUnicodeWord = RegExp([
    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
    rsUpper + '+' + rsOptContrUpper,
    rsOrdUpper,
    rsOrdLower,
    rsDigits,
    rsEmoji
  ].join('|'), 'g');

  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');

  /** Used to detect strings that need a more robust regexp to match words. */
  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;

  /** Used to assign default `context` object properties. */
  var contextProps = [
    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
  ];

  /** Used to make template sourceURLs easier to identify. */
  var templateCounter = -1;

  /** Used to identify `toStringTag` values of typed arrays. */
  var typedArrayTags = {};
  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
  typedArrayTags[uint32Tag] = true;
  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
  typedArrayTags[errorTag] = typedArrayTags[funcTag] =
  typedArrayTags[mapTag] = typedArrayTags[numberTag] =
  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
  typedArrayTags[setTag] = typedArrayTags[stringTag] =
  typedArrayTags[weakMapTag] = false;

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] =
  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
  cloneableTags[boolTag] = cloneableTags[dateTag] =
  cloneableTags[float32Tag] = cloneableTags[float64Tag] =
  cloneableTags[int8Tag] = cloneableTags[int16Tag] =
  cloneableTags[int32Tag] = cloneableTags[mapTag] =
  cloneableTags[numberTag] = cloneableTags[objectTag] =
  cloneableTags[regexpTag] = cloneableTags[setTag] =
  cloneableTags[stringTag] = cloneableTags[symbolTag] =
  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] =
  cloneableTags[weakMapTag] = false;

  /** Used to map Latin Unicode letters to basic Latin letters. */
  var deburredLetters = {
    // Latin-1 Supplement block.
    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
    '\xc7': 'C',  '\xe7': 'c',
    '\xd0': 'D',  '\xf0': 'd',
    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
    '\xd1': 'N',  '\xf1': 'n',
    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
    '\xc6': 'Ae', '\xe6': 'ae',
    '\xde': 'Th', '\xfe': 'th',
    '\xdf': 'ss',
    // Latin Extended-A block.
    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
    '\u0134': 'J',  '\u0135': 'j',
    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
    '\u0174': 'W',  '\u0175': 'w',
    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
    '\u0132': 'IJ', '\u0133': 'ij',
    '\u0152': 'Oe', '\u0153': 'oe',
    '\u0149': "'n", '\u017f': 's'
  };

  /** Used to map characters to HTML entities. */
  var htmlEscapes = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;'
  };

  /** Used to map HTML entities to characters. */
  var htmlUnescapes = {
    '&amp;': '&',
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&#39;': "'"
  };

  /** Used to escape characters for inclusion in compiled string literals. */
  var stringEscapes = {
    '\\': '\\',
    "'": "'",
    '\n': 'n',
    '\r': 'r',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  /** Built-in method references without a dependency on `root`. */
  var freeParseFloat = parseFloat,
      freeParseInt = parseInt;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;

  /** Detect free variable `self`. */
  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

  /** Used as a reference to the global object. */
  var root = freeGlobal || freeSelf || Function('return this')();

  /** Detect free variable `exports`. */
  var freeExports =  true && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;

  /** Detect free variable `process` from Node.js. */
  var freeProcess = moduleExports && freeGlobal.process;

  /** Used to access faster Node.js helpers. */
  var nodeUtil = (function() {
    try {
      // Use `util.types` for Node.js 10+.
      var types = freeModule && freeModule.require && freeModule.require('util').types;

      if (types) {
        return types;
      }

      // Legacy `process.binding('util')` for Node.js < 10.
      return freeProcess && freeProcess.binding && freeProcess.binding('util');
    } catch (e) {}
  }());

  /* Node.js helper references. */
  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
      nodeIsDate = nodeUtil && nodeUtil.isDate,
      nodeIsMap = nodeUtil && nodeUtil.isMap,
      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
      nodeIsSet = nodeUtil && nodeUtil.isSet,
      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;

  /*--------------------------------------------------------------------------*/

  /**
   * A faster alternative to `Function#apply`, this function invokes `func`
   * with the `this` binding of `thisArg` and the arguments of `args`.
   *
   * @private
   * @param {Function} func The function to invoke.
   * @param {*} thisArg The `this` binding of `func`.
   * @param {Array} args The arguments to invoke `func` with.
   * @returns {*} Returns the result of `func`.
   */
  function apply(func, thisArg, args) {
    switch (args.length) {
      case 0: return func.call(thisArg);
      case 1: return func.call(thisArg, args[0]);
      case 2: return func.call(thisArg, args[0], args[1]);
      case 3: return func.call(thisArg, args[0], args[1], args[2]);
    }
    return func.apply(thisArg, args);
  }

  /**
   * A specialized version of `baseAggregator` for arrays.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} setter The function to set `accumulator` values.
   * @param {Function} iteratee The iteratee to transform keys.
   * @param {Object} accumulator The initial aggregated object.
   * @returns {Function} Returns `accumulator`.
   */
  function arrayAggregator(array, setter, iteratee, accumulator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      var value = array[index];
      setter(accumulator, value, iteratee(value), array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.forEach` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEach(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (iteratee(array[index], index, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.forEachRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEachRight(array, iteratee) {
    var length = array == null ? 0 : array.length;

    while (length--) {
      if (iteratee(array[length], length, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.every` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if all elements pass the predicate check,
   *  else `false`.
   */
  function arrayEvery(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (!predicate(array[index], index, array)) {
        return false;
      }
    }
    return true;
  }

  /**
   * A specialized version of `_.filter` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {Array} Returns the new filtered array.
   */
  function arrayFilter(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (predicate(value, index, array)) {
        result[resIndex++] = value;
      }
    }
    return result;
  }

  /**
   * A specialized version of `_.includes` for arrays without support for
   * specifying an index to search from.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludes(array, value) {
    var length = array == null ? 0 : array.length;
    return !!length && baseIndexOf(array, value, 0) > -1;
  }

  /**
   * This function is like `arrayIncludes` except that it accepts a comparator.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludesWith(array, value, comparator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (comparator(value, array[index])) {
        return true;
      }
    }
    return false;
  }

  /**
   * A specialized version of `_.map` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the new mapped array.
   */
  function arrayMap(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length,
        result = Array(length);

    while (++index < length) {
      result[index] = iteratee(array[index], index, array);
    }
    return result;
  }

  /**
   * Appends the elements of `values` to `array`.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {Array} values The values to append.
   * @returns {Array} Returns `array`.
   */
  function arrayPush(array, values) {
    var index = -1,
        length = values.length,
        offset = array.length;

    while (++index < length) {
      array[offset + index] = values[index];
    }
    return array;
  }

  /**
   * A specialized version of `_.reduce` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the first element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduce(array, iteratee, accumulator, initAccum) {
    var index = -1,
        length = array == null ? 0 : array.length;

    if (initAccum && length) {
      accumulator = array[++index];
    }
    while (++index < length) {
      accumulator = iteratee(accumulator, array[index], index, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.reduceRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the last element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduceRight(array, iteratee, accumulator, initAccum) {
    var length = array == null ? 0 : array.length;
    if (initAccum && length) {
      accumulator = array[--length];
    }
    while (length--) {
      accumulator = iteratee(accumulator, array[length], length, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.some` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if any element passes the predicate check,
   *  else `false`.
   */
  function arraySome(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (predicate(array[index], index, array)) {
        return true;
      }
    }
    return false;
  }

  /**
   * Gets the size of an ASCII `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  var asciiSize = baseProperty('length');

  /**
   * Converts an ASCII `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function asciiToArray(string) {
    return string.split('');
  }

  /**
   * Splits an ASCII `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function asciiWords(string) {
    return string.match(reAsciiWord) || [];
  }

  /**
   * The base implementation of methods like `_.findKey` and `_.findLastKey`,
   * without support for iteratee shorthands, which iterates over `collection`
   * using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the found element or its key, else `undefined`.
   */
  function baseFindKey(collection, predicate, eachFunc) {
    var result;
    eachFunc(collection, function(value, key, collection) {
      if (predicate(value, key, collection)) {
        result = key;
        return false;
      }
    });
    return result;
  }

  /**
   * The base implementation of `_.findIndex` and `_.findLastIndex` without
   * support for iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {number} fromIndex The index to search from.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseFindIndex(array, predicate, fromIndex, fromRight) {
    var length = array.length,
        index = fromIndex + (fromRight ? 1 : -1);

    while ((fromRight ? index-- : ++index < length)) {
      if (predicate(array[index], index, array)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOf(array, value, fromIndex) {
    return value === value
      ? strictIndexOf(array, value, fromIndex)
      : baseFindIndex(array, baseIsNaN, fromIndex);
  }

  /**
   * This function is like `baseIndexOf` except that it accepts a comparator.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOfWith(array, value, fromIndex, comparator) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (comparator(array[index], value)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.isNaN` without support for number objects.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
   */
  function baseIsNaN(value) {
    return value !== value;
  }

  /**
   * The base implementation of `_.mean` and `_.meanBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the mean.
   */
  function baseMean(array, iteratee) {
    var length = array == null ? 0 : array.length;
    return length ? (baseSum(array, iteratee) / length) : NAN;
  }

  /**
   * The base implementation of `_.property` without support for deep paths.
   *
   * @private
   * @param {string} key The key of the property to get.
   * @returns {Function} Returns the new accessor function.
   */
  function baseProperty(key) {
    return function(object) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.propertyOf` without support for deep paths.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Function} Returns the new accessor function.
   */
  function basePropertyOf(object) {
    return function(key) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.reduce` and `_.reduceRight`, without support
   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} accumulator The initial value.
   * @param {boolean} initAccum Specify using the first or last element of
   *  `collection` as the initial value.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the accumulated value.
   */
  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
    eachFunc(collection, function(value, index, collection) {
      accumulator = initAccum
        ? (initAccum = false, value)
        : iteratee(accumulator, value, index, collection);
    });
    return accumulator;
  }

  /**
   * The base implementation of `_.sortBy` which uses `comparer` to define the
   * sort order of `array` and replaces criteria objects with their corresponding
   * values.
   *
   * @private
   * @param {Array} array The array to sort.
   * @param {Function} comparer The function to define sort order.
   * @returns {Array} Returns `array`.
   */
  function baseSortBy(array, comparer) {
    var length = array.length;

    array.sort(comparer);
    while (length--) {
      array[length] = array[length].value;
    }
    return array;
  }

  /**
   * The base implementation of `_.sum` and `_.sumBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the sum.
   */
  function baseSum(array, iteratee) {
    var result,
        index = -1,
        length = array.length;

    while (++index < length) {
      var current = iteratee(array[index]);
      if (current !== undefined) {
        result = result === undefined ? current : (result + current);
      }
    }
    return result;
  }

  /**
   * The base implementation of `_.times` without support for iteratee shorthands
   * or max array length checks.
   *
   * @private
   * @param {number} n The number of times to invoke `iteratee`.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the array of results.
   */
  function baseTimes(n, iteratee) {
    var index = -1,
        result = Array(n);

    while (++index < n) {
      result[index] = iteratee(index);
    }
    return result;
  }

  /**
   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
   * of key-value pairs for `object` corresponding to the property names of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the key-value pairs.
   */
  function baseToPairs(object, props) {
    return arrayMap(props, function(key) {
      return [key, object[key]];
    });
  }

  /**
   * The base implementation of `_.trim`.
   *
   * @private
   * @param {string} string The string to trim.
   * @returns {string} Returns the trimmed string.
   */
  function baseTrim(string) {
    return string
      ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')
      : string;
  }

  /**
   * The base implementation of `_.unary` without support for storing metadata.
   *
   * @private
   * @param {Function} func The function to cap arguments for.
   * @returns {Function} Returns the new capped function.
   */
  function baseUnary(func) {
    return function(value) {
      return func(value);
    };
  }

  /**
   * The base implementation of `_.values` and `_.valuesIn` which creates an
   * array of `object` property values corresponding to the property names
   * of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the array of property values.
   */
  function baseValues(object, props) {
    return arrayMap(props, function(key) {
      return object[key];
    });
  }

  /**
   * Checks if a `cache` value for `key` exists.
   *
   * @private
   * @param {Object} cache The cache to query.
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function cacheHas(cache, key) {
    return cache.has(key);
  }

  /**
   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the first unmatched string symbol.
   */
  function charsStartIndex(strSymbols, chrSymbols) {
    var index = -1,
        length = strSymbols.length;

    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the last unmatched string symbol.
   */
  function charsEndIndex(strSymbols, chrSymbols) {
    var index = strSymbols.length;

    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Gets the number of `placeholder` occurrences in `array`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} placeholder The placeholder to search for.
   * @returns {number} Returns the placeholder count.
   */
  function countHolders(array, placeholder) {
    var length = array.length,
        result = 0;

    while (length--) {
      if (array[length] === placeholder) {
        ++result;
      }
    }
    return result;
  }

  /**
   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
   * letters to basic Latin letters.
   *
   * @private
   * @param {string} letter The matched letter to deburr.
   * @returns {string} Returns the deburred letter.
   */
  var deburrLetter = basePropertyOf(deburredLetters);

  /**
   * Used by `_.escape` to convert characters to HTML entities.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  var escapeHtmlChar = basePropertyOf(htmlEscapes);

  /**
   * Used by `_.template` to escape characters for inclusion in compiled string literals.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeStringChar(chr) {
    return '\\' + stringEscapes[chr];
  }

  /**
   * Gets the value at `key` of `object`.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {string} key The key of the property to get.
   * @returns {*} Returns the property value.
   */
  function getValue(object, key) {
    return object == null ? undefined : object[key];
  }

  /**
   * Checks if `string` contains Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
   */
  function hasUnicode(string) {
    return reHasUnicode.test(string);
  }

  /**
   * Checks if `string` contains a word composed of Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a word is found, else `false`.
   */
  function hasUnicodeWord(string) {
    return reHasUnicodeWord.test(string);
  }

  /**
   * Converts `iterator` to an array.
   *
   * @private
   * @param {Object} iterator The iterator to convert.
   * @returns {Array} Returns the converted array.
   */
  function iteratorToArray(iterator) {
    var data,
        result = [];

    while (!(data = iterator.next()).done) {
      result.push(data.value);
    }
    return result;
  }

  /**
   * Converts `map` to its key-value pairs.
   *
   * @private
   * @param {Object} map The map to convert.
   * @returns {Array} Returns the key-value pairs.
   */
  function mapToArray(map) {
    var index = -1,
        result = Array(map.size);

    map.forEach(function(value, key) {
      result[++index] = [key, value];
    });
    return result;
  }

  /**
   * Creates a unary function that invokes `func` with its argument transformed.
   *
   * @private
   * @param {Function} func The function to wrap.
   * @param {Function} transform The argument transform.
   * @returns {Function} Returns the new function.
   */
  function overArg(func, transform) {
    return function(arg) {
      return func(transform(arg));
    };
  }

  /**
   * Replaces all `placeholder` elements in `array` with an internal placeholder
   * and returns an array of their indexes.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {*} placeholder The placeholder to replace.
   * @returns {Array} Returns the new array of placeholder indexes.
   */
  function replaceHolders(array, placeholder) {
    var index = -1,
        length = array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (value === placeholder || value === PLACEHOLDER) {
        array[index] = PLACEHOLDER;
        result[resIndex++] = index;
      }
    }
    return result;
  }

  /**
   * Converts `set` to an array of its values.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the values.
   */
  function setToArray(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = value;
    });
    return result;
  }

  /**
   * Converts `set` to its value-value pairs.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the value-value pairs.
   */
  function setToPairs(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = [value, value];
    });
    return result;
  }

  /**
   * A specialized version of `_.indexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictIndexOf(array, value, fromIndex) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  /**
   * A specialized version of `_.lastIndexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictLastIndexOf(array, value, fromIndex) {
    var index = fromIndex + 1;
    while (index--) {
      if (array[index] === value) {
        return index;
      }
    }
    return index;
  }

  /**
   * Gets the number of symbols in `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the string size.
   */
  function stringSize(string) {
    return hasUnicode(string)
      ? unicodeSize(string)
      : asciiSize(string);
  }

  /**
   * Converts `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function stringToArray(string) {
    return hasUnicode(string)
      ? unicodeToArray(string)
      : asciiToArray(string);
  }

  /**
   * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace
   * character of `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the index of the last non-whitespace character.
   */
  function trimmedEndIndex(string) {
    var index = string.length;

    while (index-- && reWhitespace.test(string.charAt(index))) {}
    return index;
  }

  /**
   * Used by `_.unescape` to convert HTML entities to characters.
   *
   * @private
   * @param {string} chr The matched character to unescape.
   * @returns {string} Returns the unescaped character.
   */
  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);

  /**
   * Gets the size of a Unicode `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  function unicodeSize(string) {
    var result = reUnicode.lastIndex = 0;
    while (reUnicode.test(string)) {
      ++result;
    }
    return result;
  }

  /**
   * Converts a Unicode `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function unicodeToArray(string) {
    return string.match(reUnicode) || [];
  }

  /**
   * Splits a Unicode `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function unicodeWords(string) {
    return string.match(reUnicodeWord) || [];
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Create a new pristine `lodash` function using the `context` object.
   *
   * @static
   * @memberOf _
   * @since 1.1.0
   * @category Util
   * @param {Object} [context=root] The context object.
   * @returns {Function} Returns a new `lodash` function.
   * @example
   *
   * _.mixin({ 'foo': _.constant('foo') });
   *
   * var lodash = _.runInContext();
   * lodash.mixin({ 'bar': lodash.constant('bar') });
   *
   * _.isFunction(_.foo);
   * // => true
   * _.isFunction(_.bar);
   * // => false
   *
   * lodash.isFunction(lodash.foo);
   * // => false
   * lodash.isFunction(lodash.bar);
   * // => true
   *
   * // Create a suped-up `defer` in Node.js.
   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
   */
  var runInContext = (function runInContext(context) {
    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));

    /** Built-in constructor references. */
    var Array = context.Array,
        Date = context.Date,
        Error = context.Error,
        Function = context.Function,
        Math = context.Math,
        Object = context.Object,
        RegExp = context.RegExp,
        String = context.String,
        TypeError = context.TypeError;

    /** Used for built-in method references. */
    var arrayProto = Array.prototype,
        funcProto = Function.prototype,
        objectProto = Object.prototype;

    /** Used to detect overreaching core-js shims. */
    var coreJsData = context['__core-js_shared__'];

    /** Used to resolve the decompiled source of functions. */
    var funcToString = funcProto.toString;

    /** Used to check objects for own properties. */
    var hasOwnProperty = objectProto.hasOwnProperty;

    /** Used to generate unique IDs. */
    var idCounter = 0;

    /** Used to detect methods masquerading as native. */
    var maskSrcKey = (function() {
      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
      return uid ? ('Symbol(src)_1.' + uid) : '';
    }());

    /**
     * Used to resolve the
     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
     * of values.
     */
    var nativeObjectToString = objectProto.toString;

    /** Used to infer the `Object` constructor. */
    var objectCtorString = funcToString.call(Object);

    /** Used to restore the original `_` reference in `_.noConflict`. */
    var oldDash = root._;

    /** Used to detect if a method is native. */
    var reIsNative = RegExp('^' +
      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
    );

    /** Built-in value references. */
    var Buffer = moduleExports ? context.Buffer : undefined,
        Symbol = context.Symbol,
        Uint8Array = context.Uint8Array,
        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
        getPrototype = overArg(Object.getPrototypeOf, Object),
        objectCreate = Object.create,
        propertyIsEnumerable = objectProto.propertyIsEnumerable,
        splice = arrayProto.splice,
        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
        symIterator = Symbol ? Symbol.iterator : undefined,
        symToStringTag = Symbol ? Symbol.toStringTag : undefined;

    var defineProperty = (function() {
      try {
        var func = getNative(Object, 'defineProperty');
        func({}, '', {});
        return func;
      } catch (e) {}
    }());

    /** Mocked built-ins. */
    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
        ctxNow = Date && Date.now !== root.Date.now && Date.now,
        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;

    /* Built-in method references for those with the same name as other `lodash` methods. */
    var nativeCeil = Math.ceil,
        nativeFloor = Math.floor,
        nativeGetSymbols = Object.getOwnPropertySymbols,
        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
        nativeIsFinite = context.isFinite,
        nativeJoin = arrayProto.join,
        nativeKeys = overArg(Object.keys, Object),
        nativeMax = Math.max,
        nativeMin = Math.min,
        nativeNow = Date.now,
        nativeParseInt = context.parseInt,
        nativeRandom = Math.random,
        nativeReverse = arrayProto.reverse;

    /* Built-in method references that are verified to be native. */
    var DataView = getNative(context, 'DataView'),
        Map = getNative(context, 'Map'),
        Promise = getNative(context, 'Promise'),
        Set = getNative(context, 'Set'),
        WeakMap = getNative(context, 'WeakMap'),
        nativeCreate = getNative(Object, 'create');

    /** Used to store function metadata. */
    var metaMap = WeakMap && new WeakMap;

    /** Used to lookup unminified function names. */
    var realNames = {};

    /** Used to detect maps, sets, and weakmaps. */
    var dataViewCtorString = toSource(DataView),
        mapCtorString = toSource(Map),
        promiseCtorString = toSource(Promise),
        setCtorString = toSource(Set),
        weakMapCtorString = toSource(WeakMap);

    /** Used to convert symbols to primitives and strings. */
    var symbolProto = Symbol ? Symbol.prototype : undefined,
        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
        symbolToString = symbolProto ? symbolProto.toString : undefined;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object which wraps `value` to enable implicit method
     * chain sequences. Methods that operate on and return arrays, collections,
     * and functions can be chained together. Methods that retrieve a single value
     * or may return a primitive value will automatically end the chain sequence
     * and return the unwrapped value. Otherwise, the value must be unwrapped
     * with `_#value`.
     *
     * Explicit chain sequences, which must be unwrapped with `_#value`, may be
     * enabled using `_.chain`.
     *
     * The execution of chained methods is lazy, that is, it's deferred until
     * `_#value` is implicitly or explicitly called.
     *
     * Lazy evaluation allows several methods to support shortcut fusion.
     * Shortcut fusion is an optimization to merge iteratee calls; this avoids
     * the creation of intermediate arrays and can greatly reduce the number of
     * iteratee executions. Sections of a chain sequence qualify for shortcut
     * fusion if the section is applied to an array and iteratees accept only
     * one argument. The heuristic for whether a section qualifies for shortcut
     * fusion is subject to change.
     *
     * Chaining is supported in custom builds as long as the `_#value` method is
     * directly or indirectly included in the build.
     *
     * In addition to lodash methods, wrappers have `Array` and `String` methods.
     *
     * The wrapper `Array` methods are:
     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
     *
     * The wrapper `String` methods are:
     * `replace` and `split`
     *
     * The wrapper methods that support shortcut fusion are:
     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
     *
     * The chainable wrapper methods are:
     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
     * `zipObject`, `zipObjectDeep`, and `zipWith`
     *
     * The wrapper methods that are **not** chainable by default are:
     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
     * `upperFirst`, `value`, and `words`
     *
     * @name _
     * @constructor
     * @category Seq
     * @param {*} value The value to wrap in a `lodash` instance.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2, 3]);
     *
     * // Returns an unwrapped value.
     * wrapped.reduce(_.add);
     * // => 6
     *
     * // Returns a wrapped value.
     * var squares = wrapped.map(square);
     *
     * _.isArray(squares);
     * // => false
     *
     * _.isArray(squares.value());
     * // => true
     */
    function lodash(value) {
      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
        if (value instanceof LodashWrapper) {
          return value;
        }
        if (hasOwnProperty.call(value, '__wrapped__')) {
          return wrapperClone(value);
        }
      }
      return new LodashWrapper(value);
    }

    /**
     * The base implementation of `_.create` without support for assigning
     * properties to the created object.
     *
     * @private
     * @param {Object} proto The object to inherit from.
     * @returns {Object} Returns the new object.
     */
    var baseCreate = (function() {
      function object() {}
      return function(proto) {
        if (!isObject(proto)) {
          return {};
        }
        if (objectCreate) {
          return objectCreate(proto);
        }
        object.prototype = proto;
        var result = new object;
        object.prototype = undefined;
        return result;
      };
    }());

    /**
     * The function whose prototype chain sequence wrappers inherit from.
     *
     * @private
     */
    function baseLodash() {
      // No operation performed.
    }

    /**
     * The base constructor for creating `lodash` wrapper objects.
     *
     * @private
     * @param {*} value The value to wrap.
     * @param {boolean} [chainAll] Enable explicit method chain sequences.
     */
    function LodashWrapper(value, chainAll) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__chain__ = !!chainAll;
      this.__index__ = 0;
      this.__values__ = undefined;
    }

    /**
     * By default, the template delimiters used by lodash are like those in
     * embedded Ruby (ERB) as well as ES2015 template strings. Change the
     * following template settings to use alternative delimiters.
     *
     * @static
     * @memberOf _
     * @type {Object}
     */
    lodash.templateSettings = {

      /**
       * Used to detect `data` property values to be HTML-escaped.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'escape': reEscape,

      /**
       * Used to detect code to be evaluated.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'evaluate': reEvaluate,

      /**
       * Used to detect `data` property values to inject.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'interpolate': reInterpolate,

      /**
       * Used to reference the data object in the template text.
       *
       * @memberOf _.templateSettings
       * @type {string}
       */
      'variable': '',

      /**
       * Used to import variables into the compiled template.
       *
       * @memberOf _.templateSettings
       * @type {Object}
       */
      'imports': {

        /**
         * A reference to the `lodash` function.
         *
         * @memberOf _.templateSettings.imports
         * @type {Function}
         */
        '_': lodash
      }
    };

    // Ensure wrappers are instances of `baseLodash`.
    lodash.prototype = baseLodash.prototype;
    lodash.prototype.constructor = lodash;

    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
    LodashWrapper.prototype.constructor = LodashWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
     *
     * @private
     * @constructor
     * @param {*} value The value to wrap.
     */
    function LazyWrapper(value) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__dir__ = 1;
      this.__filtered__ = false;
      this.__iteratees__ = [];
      this.__takeCount__ = MAX_ARRAY_LENGTH;
      this.__views__ = [];
    }

    /**
     * Creates a clone of the lazy wrapper object.
     *
     * @private
     * @name clone
     * @memberOf LazyWrapper
     * @returns {Object} Returns the cloned `LazyWrapper` object.
     */
    function lazyClone() {
      var result = new LazyWrapper(this.__wrapped__);
      result.__actions__ = copyArray(this.__actions__);
      result.__dir__ = this.__dir__;
      result.__filtered__ = this.__filtered__;
      result.__iteratees__ = copyArray(this.__iteratees__);
      result.__takeCount__ = this.__takeCount__;
      result.__views__ = copyArray(this.__views__);
      return result;
    }

    /**
     * Reverses the direction of lazy iteration.
     *
     * @private
     * @name reverse
     * @memberOf LazyWrapper
     * @returns {Object} Returns the new reversed `LazyWrapper` object.
     */
    function lazyReverse() {
      if (this.__filtered__) {
        var result = new LazyWrapper(this);
        result.__dir__ = -1;
        result.__filtered__ = true;
      } else {
        result = this.clone();
        result.__dir__ *= -1;
      }
      return result;
    }

    /**
     * Extracts the unwrapped value from its lazy wrapper.
     *
     * @private
     * @name value
     * @memberOf LazyWrapper
     * @returns {*} Returns the unwrapped value.
     */
    function lazyValue() {
      var array = this.__wrapped__.value(),
          dir = this.__dir__,
          isArr = isArray(array),
          isRight = dir < 0,
          arrLength = isArr ? array.length : 0,
          view = getView(0, arrLength, this.__views__),
          start = view.start,
          end = view.end,
          length = end - start,
          index = isRight ? end : (start - 1),
          iteratees = this.__iteratees__,
          iterLength = iteratees.length,
          resIndex = 0,
          takeCount = nativeMin(length, this.__takeCount__);

      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
        return baseWrapperValue(array, this.__actions__);
      }
      var result = [];

      outer:
      while (length-- && resIndex < takeCount) {
        index += dir;

        var iterIndex = -1,
            value = array[index];

        while (++iterIndex < iterLength) {
          var data = iteratees[iterIndex],
              iteratee = data.iteratee,
              type = data.type,
              computed = iteratee(value);

          if (type == LAZY_MAP_FLAG) {
            value = computed;
          } else if (!computed) {
            if (type == LAZY_FILTER_FLAG) {
              continue outer;
            } else {
              break outer;
            }
          }
        }
        result[resIndex++] = value;
      }
      return result;
    }

    // Ensure `LazyWrapper` is an instance of `baseLodash`.
    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
    LazyWrapper.prototype.constructor = LazyWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a hash object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Hash(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the hash.
     *
     * @private
     * @name clear
     * @memberOf Hash
     */
    function hashClear() {
      this.__data__ = nativeCreate ? nativeCreate(null) : {};
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the hash.
     *
     * @private
     * @name delete
     * @memberOf Hash
     * @param {Object} hash The hash to modify.
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function hashDelete(key) {
      var result = this.has(key) && delete this.__data__[key];
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the hash value for `key`.
     *
     * @private
     * @name get
     * @memberOf Hash
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function hashGet(key) {
      var data = this.__data__;
      if (nativeCreate) {
        var result = data[key];
        return result === HASH_UNDEFINED ? undefined : result;
      }
      return hasOwnProperty.call(data, key) ? data[key] : undefined;
    }

    /**
     * Checks if a hash value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Hash
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function hashHas(key) {
      var data = this.__data__;
      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
    }

    /**
     * Sets the hash `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Hash
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the hash instance.
     */
    function hashSet(key, value) {
      var data = this.__data__;
      this.size += this.has(key) ? 0 : 1;
      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
      return this;
    }

    // Add methods to `Hash`.
    Hash.prototype.clear = hashClear;
    Hash.prototype['delete'] = hashDelete;
    Hash.prototype.get = hashGet;
    Hash.prototype.has = hashHas;
    Hash.prototype.set = hashSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an list cache object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function ListCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the list cache.
     *
     * @private
     * @name clear
     * @memberOf ListCache
     */
    function listCacheClear() {
      this.__data__ = [];
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the list cache.
     *
     * @private
     * @name delete
     * @memberOf ListCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function listCacheDelete(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        return false;
      }
      var lastIndex = data.length - 1;
      if (index == lastIndex) {
        data.pop();
      } else {
        splice.call(data, index, 1);
      }
      --this.size;
      return true;
    }

    /**
     * Gets the list cache value for `key`.
     *
     * @private
     * @name get
     * @memberOf ListCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function listCacheGet(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      return index < 0 ? undefined : data[index][1];
    }

    /**
     * Checks if a list cache value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf ListCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function listCacheHas(key) {
      return assocIndexOf(this.__data__, key) > -1;
    }

    /**
     * Sets the list cache `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf ListCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the list cache instance.
     */
    function listCacheSet(key, value) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        ++this.size;
        data.push([key, value]);
      } else {
        data[index][1] = value;
      }
      return this;
    }

    // Add methods to `ListCache`.
    ListCache.prototype.clear = listCacheClear;
    ListCache.prototype['delete'] = listCacheDelete;
    ListCache.prototype.get = listCacheGet;
    ListCache.prototype.has = listCacheHas;
    ListCache.prototype.set = listCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a map cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function MapCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the map.
     *
     * @private
     * @name clear
     * @memberOf MapCache
     */
    function mapCacheClear() {
      this.size = 0;
      this.__data__ = {
        'hash': new Hash,
        'map': new (Map || ListCache),
        'string': new Hash
      };
    }

    /**
     * Removes `key` and its value from the map.
     *
     * @private
     * @name delete
     * @memberOf MapCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function mapCacheDelete(key) {
      var result = getMapData(this, key)['delete'](key);
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the map value for `key`.
     *
     * @private
     * @name get
     * @memberOf MapCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function mapCacheGet(key) {
      return getMapData(this, key).get(key);
    }

    /**
     * Checks if a map value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf MapCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function mapCacheHas(key) {
      return getMapData(this, key).has(key);
    }

    /**
     * Sets the map `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf MapCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the map cache instance.
     */
    function mapCacheSet(key, value) {
      var data = getMapData(this, key),
          size = data.size;

      data.set(key, value);
      this.size += data.size == size ? 0 : 1;
      return this;
    }

    // Add methods to `MapCache`.
    MapCache.prototype.clear = mapCacheClear;
    MapCache.prototype['delete'] = mapCacheDelete;
    MapCache.prototype.get = mapCacheGet;
    MapCache.prototype.has = mapCacheHas;
    MapCache.prototype.set = mapCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     *
     * Creates an array cache object to store unique values.
     *
     * @private
     * @constructor
     * @param {Array} [values] The values to cache.
     */
    function SetCache(values) {
      var index = -1,
          length = values == null ? 0 : values.length;

      this.__data__ = new MapCache;
      while (++index < length) {
        this.add(values[index]);
      }
    }

    /**
     * Adds `value` to the array cache.
     *
     * @private
     * @name add
     * @memberOf SetCache
     * @alias push
     * @param {*} value The value to cache.
     * @returns {Object} Returns the cache instance.
     */
    function setCacheAdd(value) {
      this.__data__.set(value, HASH_UNDEFINED);
      return this;
    }

    /**
     * Checks if `value` is in the array cache.
     *
     * @private
     * @name has
     * @memberOf SetCache
     * @param {*} value The value to search for.
     * @returns {number} Returns `true` if `value` is found, else `false`.
     */
    function setCacheHas(value) {
      return this.__data__.has(value);
    }

    // Add methods to `SetCache`.
    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
    SetCache.prototype.has = setCacheHas;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a stack cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Stack(entries) {
      var data = this.__data__ = new ListCache(entries);
      this.size = data.size;
    }

    /**
     * Removes all key-value entries from the stack.
     *
     * @private
     * @name clear
     * @memberOf Stack
     */
    function stackClear() {
      this.__data__ = new ListCache;
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the stack.
     *
     * @private
     * @name delete
     * @memberOf Stack
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function stackDelete(key) {
      var data = this.__data__,
          result = data['delete'](key);

      this.size = data.size;
      return result;
    }

    /**
     * Gets the stack value for `key`.
     *
     * @private
     * @name get
     * @memberOf Stack
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function stackGet(key) {
      return this.__data__.get(key);
    }

    /**
     * Checks if a stack value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Stack
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function stackHas(key) {
      return this.__data__.has(key);
    }

    /**
     * Sets the stack `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Stack
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the stack cache instance.
     */
    function stackSet(key, value) {
      var data = this.__data__;
      if (data instanceof ListCache) {
        var pairs = data.__data__;
        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
          pairs.push([key, value]);
          this.size = ++data.size;
          return this;
        }
        data = this.__data__ = new MapCache(pairs);
      }
      data.set(key, value);
      this.size = data.size;
      return this;
    }

    // Add methods to `Stack`.
    Stack.prototype.clear = stackClear;
    Stack.prototype['delete'] = stackDelete;
    Stack.prototype.get = stackGet;
    Stack.prototype.has = stackHas;
    Stack.prototype.set = stackSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of the enumerable property names of the array-like `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @param {boolean} inherited Specify returning inherited property names.
     * @returns {Array} Returns the array of property names.
     */
    function arrayLikeKeys(value, inherited) {
      var isArr = isArray(value),
          isArg = !isArr && isArguments(value),
          isBuff = !isArr && !isArg && isBuffer(value),
          isType = !isArr && !isArg && !isBuff && isTypedArray(value),
          skipIndexes = isArr || isArg || isBuff || isType,
          result = skipIndexes ? baseTimes(value.length, String) : [],
          length = result.length;

      for (var key in value) {
        if ((inherited || hasOwnProperty.call(value, key)) &&
            !(skipIndexes && (
               // Safari 9 has enumerable `arguments.length` in strict mode.
               key == 'length' ||
               // Node.js 0.10 has enumerable non-index properties on buffers.
               (isBuff && (key == 'offset' || key == 'parent')) ||
               // PhantomJS 2 has enumerable non-index properties on typed arrays.
               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
               // Skip index properties.
               isIndex(key, length)
            ))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.sample` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @returns {*} Returns the random element.
     */
    function arraySample(array) {
      var length = array.length;
      return length ? array[baseRandom(0, length - 1)] : undefined;
    }

    /**
     * A specialized version of `_.sampleSize` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function arraySampleSize(array, n) {
      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
    }

    /**
     * A specialized version of `_.shuffle` for arrays.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function arrayShuffle(array) {
      return shuffleSelf(copyArray(array));
    }

    /**
     * This function is like `assignValue` except that it doesn't assign
     * `undefined` values.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignMergeValue(object, key, value) {
      if ((value !== undefined && !eq(object[key], value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Assigns `value` to `key` of `object` if the existing value is not equivalent
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignValue(object, key, value) {
      var objValue = object[key];
      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Gets the index at which the `key` is found in `array` of key-value pairs.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {*} key The key to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     */
    function assocIndexOf(array, key) {
      var length = array.length;
      while (length--) {
        if (eq(array[length][0], key)) {
          return length;
        }
      }
      return -1;
    }

    /**
     * Aggregates elements of `collection` on `accumulator` with keys transformed
     * by `iteratee` and values set by `setter`.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform keys.
     * @param {Object} accumulator The initial aggregated object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseAggregator(collection, setter, iteratee, accumulator) {
      baseEach(collection, function(value, key, collection) {
        setter(accumulator, value, iteratee(value), collection);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.assign` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssign(object, source) {
      return object && copyObject(source, keys(source), object);
    }

    /**
     * The base implementation of `_.assignIn` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssignIn(object, source) {
      return object && copyObject(source, keysIn(source), object);
    }

    /**
     * The base implementation of `assignValue` and `assignMergeValue` without
     * value checks.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function baseAssignValue(object, key, value) {
      if (key == '__proto__' && defineProperty) {
        defineProperty(object, key, {
          'configurable': true,
          'enumerable': true,
          'value': value,
          'writable': true
        });
      } else {
        object[key] = value;
      }
    }

    /**
     * The base implementation of `_.at` without support for individual paths.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {string[]} paths The property paths to pick.
     * @returns {Array} Returns the picked elements.
     */
    function baseAt(object, paths) {
      var index = -1,
          length = paths.length,
          result = Array(length),
          skip = object == null;

      while (++index < length) {
        result[index] = skip ? undefined : get(object, paths[index]);
      }
      return result;
    }

    /**
     * The base implementation of `_.clamp` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     */
    function baseClamp(number, lower, upper) {
      if (number === number) {
        if (upper !== undefined) {
          number = number <= upper ? number : upper;
        }
        if (lower !== undefined) {
          number = number >= lower ? number : lower;
        }
      }
      return number;
    }

    /**
     * The base implementation of `_.clone` and `_.cloneDeep` which tracks
     * traversed objects.
     *
     * @private
     * @param {*} value The value to clone.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Deep clone
     *  2 - Flatten inherited properties
     *  4 - Clone symbols
     * @param {Function} [customizer] The function to customize cloning.
     * @param {string} [key] The key of `value`.
     * @param {Object} [object] The parent object of `value`.
     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
     * @returns {*} Returns the cloned value.
     */
    function baseClone(value, bitmask, customizer, key, object, stack) {
      var result,
          isDeep = bitmask & CLONE_DEEP_FLAG,
          isFlat = bitmask & CLONE_FLAT_FLAG,
          isFull = bitmask & CLONE_SYMBOLS_FLAG;

      if (customizer) {
        result = object ? customizer(value, key, object, stack) : customizer(value);
      }
      if (result !== undefined) {
        return result;
      }
      if (!isObject(value)) {
        return value;
      }
      var isArr = isArray(value);
      if (isArr) {
        result = initCloneArray(value);
        if (!isDeep) {
          return copyArray(value, result);
        }
      } else {
        var tag = getTag(value),
            isFunc = tag == funcTag || tag == genTag;

        if (isBuffer(value)) {
          return cloneBuffer(value, isDeep);
        }
        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
          result = (isFlat || isFunc) ? {} : initCloneObject(value);
          if (!isDeep) {
            return isFlat
              ? copySymbolsIn(value, baseAssignIn(result, value))
              : copySymbols(value, baseAssign(result, value));
          }
        } else {
          if (!cloneableTags[tag]) {
            return object ? value : {};
          }
          result = initCloneByTag(value, tag, isDeep);
        }
      }
      // Check for circular references and return its corresponding clone.
      stack || (stack = new Stack);
      var stacked = stack.get(value);
      if (stacked) {
        return stacked;
      }
      stack.set(value, result);

      if (isSet(value)) {
        value.forEach(function(subValue) {
          result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));
        });
      } else if (isMap(value)) {
        value.forEach(function(subValue, key) {
          result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));
        });
      }

      var keysFunc = isFull
        ? (isFlat ? getAllKeysIn : getAllKeys)
        : (isFlat ? keysIn : keys);

      var props = isArr ? undefined : keysFunc(value);
      arrayEach(props || value, function(subValue, key) {
        if (props) {
          key = subValue;
          subValue = value[key];
        }
        // Recursively populate clone (susceptible to call stack limits).
        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
      });
      return result;
    }

    /**
     * The base implementation of `_.conforms` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     */
    function baseConforms(source) {
      var props = keys(source);
      return function(object) {
        return baseConformsTo(object, source, props);
      };
    }

    /**
     * The base implementation of `_.conformsTo` which accepts `props` to check.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     */
    function baseConformsTo(object, source, props) {
      var length = props.length;
      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (length--) {
        var key = props[length],
            predicate = source[key],
            value = object[key];

        if ((value === undefined && !(key in object)) || !predicate(value)) {
          return false;
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.delay` and `_.defer` which accepts `args`
     * to provide to `func`.
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {Array} args The arguments to provide to `func`.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    function baseDelay(func, wait, args) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return setTimeout(function() { func.apply(undefined, args); }, wait);
    }

    /**
     * The base implementation of methods like `_.difference` without support
     * for excluding multiple arrays or iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Array} values The values to exclude.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     */
    function baseDifference(array, values, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          isCommon = true,
          length = array.length,
          result = [],
          valuesLength = values.length;

      if (!length) {
        return result;
      }
      if (iteratee) {
        values = arrayMap(values, baseUnary(iteratee));
      }
      if (comparator) {
        includes = arrayIncludesWith;
        isCommon = false;
      }
      else if (values.length >= LARGE_ARRAY_SIZE) {
        includes = cacheHas;
        isCommon = false;
        values = new SetCache(values);
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee == null ? value : iteratee(value);

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var valuesIndex = valuesLength;
          while (valuesIndex--) {
            if (values[valuesIndex] === computed) {
              continue outer;
            }
          }
          result.push(value);
        }
        else if (!includes(values, computed, comparator)) {
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.forEach` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEach = createBaseEach(baseForOwn);

    /**
     * The base implementation of `_.forEachRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEachRight = createBaseEach(baseForOwnRight, true);

    /**
     * The base implementation of `_.every` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`
     */
    function baseEvery(collection, predicate) {
      var result = true;
      baseEach(collection, function(value, index, collection) {
        result = !!predicate(value, index, collection);
        return result;
      });
      return result;
    }

    /**
     * The base implementation of methods like `_.max` and `_.min` which accepts a
     * `comparator` to determine the extremum value.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The iteratee invoked per iteration.
     * @param {Function} comparator The comparator used to compare values.
     * @returns {*} Returns the extremum value.
     */
    function baseExtremum(array, iteratee, comparator) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        var value = array[index],
            current = iteratee(value);

        if (current != null && (computed === undefined
              ? (current === current && !isSymbol(current))
              : comparator(current, computed)
            )) {
          var computed = current,
              result = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.fill` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     */
    function baseFill(array, value, start, end) {
      var length = array.length;

      start = toInteger(start);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : toInteger(end);
      if (end < 0) {
        end += length;
      }
      end = start > end ? 0 : toLength(end);
      while (start < end) {
        array[start++] = value;
      }
      return array;
    }

    /**
     * The base implementation of `_.filter` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function baseFilter(collection, predicate) {
      var result = [];
      baseEach(collection, function(value, index, collection) {
        if (predicate(value, index, collection)) {
          result.push(value);
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.flatten` with support for restricting flattening.
     *
     * @private
     * @param {Array} array The array to flatten.
     * @param {number} depth The maximum recursion depth.
     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
     * @param {Array} [result=[]] The initial result value.
     * @returns {Array} Returns the new flattened array.
     */
    function baseFlatten(array, depth, predicate, isStrict, result) {
      var index = -1,
          length = array.length;

      predicate || (predicate = isFlattenable);
      result || (result = []);

      while (++index < length) {
        var value = array[index];
        if (depth > 0 && predicate(value)) {
          if (depth > 1) {
            // Recursively flatten arrays (susceptible to call stack limits).
            baseFlatten(value, depth - 1, predicate, isStrict, result);
          } else {
            arrayPush(result, value);
          }
        } else if (!isStrict) {
          result[result.length] = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `baseForOwn` which iterates over `object`
     * properties returned by `keysFunc` and invokes `iteratee` for each property.
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseFor = createBaseFor();

    /**
     * This function is like `baseFor` except that it iterates over properties
     * in the opposite order.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseForRight = createBaseFor(true);

    /**
     * The base implementation of `_.forOwn` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwn(object, iteratee) {
      return object && baseFor(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwnRight(object, iteratee) {
      return object && baseForRight(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.functions` which creates an array of
     * `object` function property names filtered from `props`.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} props The property names to filter.
     * @returns {Array} Returns the function names.
     */
    function baseFunctions(object, props) {
      return arrayFilter(props, function(key) {
        return isFunction(object[key]);
      });
    }

    /**
     * The base implementation of `_.get` without support for default values.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @returns {*} Returns the resolved value.
     */
    function baseGet(object, path) {
      path = castPath(path, object);

      var index = 0,
          length = path.length;

      while (object != null && index < length) {
        object = object[toKey(path[index++])];
      }
      return (index && index == length) ? object : undefined;
    }

    /**
     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
     * `keysFunc` and `symbolsFunc` to get the enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @param {Function} symbolsFunc The function to get the symbols of `object`.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function baseGetAllKeys(object, keysFunc, symbolsFunc) {
      var result = keysFunc(object);
      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
    }

    /**
     * The base implementation of `getTag` without fallbacks for buggy environments.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    function baseGetTag(value) {
      if (value == null) {
        return value === undefined ? undefinedTag : nullTag;
      }
      return (symToStringTag && symToStringTag in Object(value))
        ? getRawTag(value)
        : objectToString(value);
    }

    /**
     * The base implementation of `_.gt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     */
    function baseGt(value, other) {
      return value > other;
    }

    /**
     * The base implementation of `_.has` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHas(object, key) {
      return object != null && hasOwnProperty.call(object, key);
    }

    /**
     * The base implementation of `_.hasIn` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHasIn(object, key) {
      return object != null && key in Object(object);
    }

    /**
     * The base implementation of `_.inRange` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to check.
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     */
    function baseInRange(number, start, end) {
      return number >= nativeMin(start, end) && number < nativeMax(start, end);
    }

    /**
     * The base implementation of methods like `_.intersection`, without support
     * for iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of shared values.
     */
    function baseIntersection(arrays, iteratee, comparator) {
      var includes = comparator ? arrayIncludesWith : arrayIncludes,
          length = arrays[0].length,
          othLength = arrays.length,
          othIndex = othLength,
          caches = Array(othLength),
          maxLength = Infinity,
          result = [];

      while (othIndex--) {
        var array = arrays[othIndex];
        if (othIndex && iteratee) {
          array = arrayMap(array, baseUnary(iteratee));
        }
        maxLength = nativeMin(array.length, maxLength);
        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
          ? new SetCache(othIndex && array)
          : undefined;
      }
      array = arrays[0];

      var index = -1,
          seen = caches[0];

      outer:
      while (++index < length && result.length < maxLength) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (!(seen
              ? cacheHas(seen, computed)
              : includes(result, computed, comparator)
            )) {
          othIndex = othLength;
          while (--othIndex) {
            var cache = caches[othIndex];
            if (!(cache
                  ? cacheHas(cache, computed)
                  : includes(arrays[othIndex], computed, comparator))
                ) {
              continue outer;
            }
          }
          if (seen) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.invert` and `_.invertBy` which inverts
     * `object` with values transformed by `iteratee` and set by `setter`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform values.
     * @param {Object} accumulator The initial inverted object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseInverter(object, setter, iteratee, accumulator) {
      baseForOwn(object, function(value, key, object) {
        setter(accumulator, iteratee(value), key, object);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.invoke` without support for individual
     * method arguments.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {Array} args The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     */
    function baseInvoke(object, path, args) {
      path = castPath(path, object);
      object = parent(object, path);
      var func = object == null ? object : object[toKey(last(path))];
      return func == null ? undefined : apply(func, object, args);
    }

    /**
     * The base implementation of `_.isArguments`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     */
    function baseIsArguments(value) {
      return isObjectLike(value) && baseGetTag(value) == argsTag;
    }

    /**
     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     */
    function baseIsArrayBuffer(value) {
      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
    }

    /**
     * The base implementation of `_.isDate` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     */
    function baseIsDate(value) {
      return isObjectLike(value) && baseGetTag(value) == dateTag;
    }

    /**
     * The base implementation of `_.isEqual` which supports partial comparisons
     * and tracks traversed objects.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Unordered comparison
     *  2 - Partial comparison
     * @param {Function} [customizer] The function to customize comparisons.
     * @param {Object} [stack] Tracks traversed `value` and `other` objects.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     */
    function baseIsEqual(value, other, bitmask, customizer, stack) {
      if (value === other) {
        return true;
      }
      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
        return value !== value && other !== other;
      }
      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
    }

    /**
     * A specialized version of `baseIsEqual` for arrays and objects which performs
     * deep comparisons and tracks traversed objects enabling objects with circular
     * references to be compared.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} [stack] Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
      var objIsArr = isArray(object),
          othIsArr = isArray(other),
          objTag = objIsArr ? arrayTag : getTag(object),
          othTag = othIsArr ? arrayTag : getTag(other);

      objTag = objTag == argsTag ? objectTag : objTag;
      othTag = othTag == argsTag ? objectTag : othTag;

      var objIsObj = objTag == objectTag,
          othIsObj = othTag == objectTag,
          isSameTag = objTag == othTag;

      if (isSameTag && isBuffer(object)) {
        if (!isBuffer(other)) {
          return false;
        }
        objIsArr = true;
        objIsObj = false;
      }
      if (isSameTag && !objIsObj) {
        stack || (stack = new Stack);
        return (objIsArr || isTypedArray(object))
          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
      }
      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

        if (objIsWrapped || othIsWrapped) {
          var objUnwrapped = objIsWrapped ? object.value() : object,
              othUnwrapped = othIsWrapped ? other.value() : other;

          stack || (stack = new Stack);
          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
        }
      }
      if (!isSameTag) {
        return false;
      }
      stack || (stack = new Stack);
      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
    }

    /**
     * The base implementation of `_.isMap` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     */
    function baseIsMap(value) {
      return isObjectLike(value) && getTag(value) == mapTag;
    }

    /**
     * The base implementation of `_.isMatch` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Array} matchData The property names, values, and compare flags to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     */
    function baseIsMatch(object, source, matchData, customizer) {
      var index = matchData.length,
          length = index,
          noCustomizer = !customizer;

      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (index--) {
        var data = matchData[index];
        if ((noCustomizer && data[2])
              ? data[1] !== object[data[0]]
              : !(data[0] in object)
            ) {
          return false;
        }
      }
      while (++index < length) {
        data = matchData[index];
        var key = data[0],
            objValue = object[key],
            srcValue = data[1];

        if (noCustomizer && data[2]) {
          if (objValue === undefined && !(key in object)) {
            return false;
          }
        } else {
          var stack = new Stack;
          if (customizer) {
            var result = customizer(objValue, srcValue, key, object, source, stack);
          }
          if (!(result === undefined
                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
                : result
              )) {
            return false;
          }
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.isNative` without bad shim checks.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     */
    function baseIsNative(value) {
      if (!isObject(value) || isMasked(value)) {
        return false;
      }
      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
      return pattern.test(toSource(value));
    }

    /**
     * The base implementation of `_.isRegExp` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     */
    function baseIsRegExp(value) {
      return isObjectLike(value) && baseGetTag(value) == regexpTag;
    }

    /**
     * The base implementation of `_.isSet` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     */
    function baseIsSet(value) {
      return isObjectLike(value) && getTag(value) == setTag;
    }

    /**
     * The base implementation of `_.isTypedArray` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     */
    function baseIsTypedArray(value) {
      return isObjectLike(value) &&
        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
    }

    /**
     * The base implementation of `_.iteratee`.
     *
     * @private
     * @param {*} [value=_.identity] The value to convert to an iteratee.
     * @returns {Function} Returns the iteratee.
     */
    function baseIteratee(value) {
      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
      if (typeof value == 'function') {
        return value;
      }
      if (value == null) {
        return identity;
      }
      if (typeof value == 'object') {
        return isArray(value)
          ? baseMatchesProperty(value[0], value[1])
          : baseMatches(value);
      }
      return property(value);
    }

    /**
     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeys(object) {
      if (!isPrototype(object)) {
        return nativeKeys(object);
      }
      var result = [];
      for (var key in Object(object)) {
        if (hasOwnProperty.call(object, key) && key != 'constructor') {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeysIn(object) {
      if (!isObject(object)) {
        return nativeKeysIn(object);
      }
      var isProto = isPrototype(object),
          result = [];

      for (var key in object) {
        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.lt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     */
    function baseLt(value, other) {
      return value < other;
    }

    /**
     * The base implementation of `_.map` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function baseMap(collection, iteratee) {
      var index = -1,
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value, key, collection) {
        result[++index] = iteratee(value, key, collection);
      });
      return result;
    }

    /**
     * The base implementation of `_.matches` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatches(source) {
      var matchData = getMatchData(source);
      if (matchData.length == 1 && matchData[0][2]) {
        return matchesStrictComparable(matchData[0][0], matchData[0][1]);
      }
      return function(object) {
        return object === source || baseIsMatch(object, source, matchData);
      };
    }

    /**
     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
     *
     * @private
     * @param {string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatchesProperty(path, srcValue) {
      if (isKey(path) && isStrictComparable(srcValue)) {
        return matchesStrictComparable(toKey(path), srcValue);
      }
      return function(object) {
        var objValue = get(object, path);
        return (objValue === undefined && objValue === srcValue)
          ? hasIn(object, path)
          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
      };
    }

    /**
     * The base implementation of `_.merge` without support for multiple sources.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMerge(object, source, srcIndex, customizer, stack) {
      if (object === source) {
        return;
      }
      baseFor(source, function(srcValue, key) {
        stack || (stack = new Stack);
        if (isObject(srcValue)) {
          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
        }
        else {
          var newValue = customizer
            ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
            : undefined;

          if (newValue === undefined) {
            newValue = srcValue;
          }
          assignMergeValue(object, key, newValue);
        }
      }, keysIn);
    }

    /**
     * A specialized version of `baseMerge` for arrays and objects which performs
     * deep merges and tracks traversed objects enabling objects with circular
     * references to be merged.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {string} key The key of the value to merge.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} mergeFunc The function to merge values.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
      var objValue = safeGet(object, key),
          srcValue = safeGet(source, key),
          stacked = stack.get(srcValue);

      if (stacked) {
        assignMergeValue(object, key, stacked);
        return;
      }
      var newValue = customizer
        ? customizer(objValue, srcValue, (key + ''), object, source, stack)
        : undefined;

      var isCommon = newValue === undefined;

      if (isCommon) {
        var isArr = isArray(srcValue),
            isBuff = !isArr && isBuffer(srcValue),
            isTyped = !isArr && !isBuff && isTypedArray(srcValue);

        newValue = srcValue;
        if (isArr || isBuff || isTyped) {
          if (isArray(objValue)) {
            newValue = objValue;
          }
          else if (isArrayLikeObject(objValue)) {
            newValue = copyArray(objValue);
          }
          else if (isBuff) {
            isCommon = false;
            newValue = cloneBuffer(srcValue, true);
          }
          else if (isTyped) {
            isCommon = false;
            newValue = cloneTypedArray(srcValue, true);
          }
          else {
            newValue = [];
          }
        }
        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
          newValue = objValue;
          if (isArguments(objValue)) {
            newValue = toPlainObject(objValue);
          }
          else if (!isObject(objValue) || isFunction(objValue)) {
            newValue = initCloneObject(srcValue);
          }
        }
        else {
          isCommon = false;
        }
      }
      if (isCommon) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, newValue);
        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
        stack['delete'](srcValue);
      }
      assignMergeValue(object, key, newValue);
    }

    /**
     * The base implementation of `_.nth` which doesn't coerce arguments.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {number} n The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     */
    function baseNth(array, n) {
      var length = array.length;
      if (!length) {
        return;
      }
      n += n < 0 ? length : 0;
      return isIndex(n, length) ? array[n] : undefined;
    }

    /**
     * The base implementation of `_.orderBy` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {string[]} orders The sort orders of `iteratees`.
     * @returns {Array} Returns the new sorted array.
     */
    function baseOrderBy(collection, iteratees, orders) {
      if (iteratees.length) {
        iteratees = arrayMap(iteratees, function(iteratee) {
          if (isArray(iteratee)) {
            return function(value) {
              return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);
            }
          }
          return iteratee;
        });
      } else {
        iteratees = [identity];
      }

      var index = -1;
      iteratees = arrayMap(iteratees, baseUnary(getIteratee()));

      var result = baseMap(collection, function(value, key, collection) {
        var criteria = arrayMap(iteratees, function(iteratee) {
          return iteratee(value);
        });
        return { 'criteria': criteria, 'index': ++index, 'value': value };
      });

      return baseSortBy(result, function(object, other) {
        return compareMultiple(object, other, orders);
      });
    }

    /**
     * The base implementation of `_.pick` without support for individual
     * property identifiers.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @returns {Object} Returns the new object.
     */
    function basePick(object, paths) {
      return basePickBy(object, paths, function(value, path) {
        return hasIn(object, path);
      });
    }

    /**
     * The base implementation of  `_.pickBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @param {Function} predicate The function invoked per property.
     * @returns {Object} Returns the new object.
     */
    function basePickBy(object, paths, predicate) {
      var index = -1,
          length = paths.length,
          result = {};

      while (++index < length) {
        var path = paths[index],
            value = baseGet(object, path);

        if (predicate(value, path)) {
          baseSet(result, castPath(path, object), value);
        }
      }
      return result;
    }

    /**
     * A specialized version of `baseProperty` which supports deep paths.
     *
     * @private
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     */
    function basePropertyDeep(path) {
      return function(object) {
        return baseGet(object, path);
      };
    }

    /**
     * The base implementation of `_.pullAllBy` without support for iteratee
     * shorthands.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     */
    function basePullAll(array, values, iteratee, comparator) {
      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
          index = -1,
          length = values.length,
          seen = array;

      if (array === values) {
        values = copyArray(values);
      }
      if (iteratee) {
        seen = arrayMap(array, baseUnary(iteratee));
      }
      while (++index < length) {
        var fromIndex = 0,
            value = values[index],
            computed = iteratee ? iteratee(value) : value;

        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
          if (seen !== array) {
            splice.call(seen, fromIndex, 1);
          }
          splice.call(array, fromIndex, 1);
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.pullAt` without support for individual
     * indexes or capturing the removed elements.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {number[]} indexes The indexes of elements to remove.
     * @returns {Array} Returns `array`.
     */
    function basePullAt(array, indexes) {
      var length = array ? indexes.length : 0,
          lastIndex = length - 1;

      while (length--) {
        var index = indexes[length];
        if (length == lastIndex || index !== previous) {
          var previous = index;
          if (isIndex(index)) {
            splice.call(array, index, 1);
          } else {
            baseUnset(array, index);
          }
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.random` without support for returning
     * floating-point numbers.
     *
     * @private
     * @param {number} lower The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the random number.
     */
    function baseRandom(lower, upper) {
      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
    }

    /**
     * The base implementation of `_.range` and `_.rangeRight` which doesn't
     * coerce arguments.
     *
     * @private
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @param {number} step The value to increment or decrement by.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the range of numbers.
     */
    function baseRange(start, end, step, fromRight) {
      var index = -1,
          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
          result = Array(length);

      while (length--) {
        result[fromRight ? length : ++index] = start;
        start += step;
      }
      return result;
    }

    /**
     * The base implementation of `_.repeat` which doesn't coerce arguments.
     *
     * @private
     * @param {string} string The string to repeat.
     * @param {number} n The number of times to repeat the string.
     * @returns {string} Returns the repeated string.
     */
    function baseRepeat(string, n) {
      var result = '';
      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
        return result;
      }
      // Leverage the exponentiation by squaring algorithm for a faster repeat.
      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
      do {
        if (n % 2) {
          result += string;
        }
        n = nativeFloor(n / 2);
        if (n) {
          string += string;
        }
      } while (n);

      return result;
    }

    /**
     * The base implementation of `_.rest` which doesn't validate or coerce arguments.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     */
    function baseRest(func, start) {
      return setToString(overRest(func, start, identity), func + '');
    }

    /**
     * The base implementation of `_.sample`.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     */
    function baseSample(collection) {
      return arraySample(values(collection));
    }

    /**
     * The base implementation of `_.sampleSize` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function baseSampleSize(collection, n) {
      var array = values(collection);
      return shuffleSelf(array, baseClamp(n, 0, array.length));
    }

    /**
     * The base implementation of `_.set`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseSet(object, path, value, customizer) {
      if (!isObject(object)) {
        return object;
      }
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          lastIndex = length - 1,
          nested = object;

      while (nested != null && ++index < length) {
        var key = toKey(path[index]),
            newValue = value;

        if (key === '__proto__' || key === 'constructor' || key === 'prototype') {
          return object;
        }

        if (index != lastIndex) {
          var objValue = nested[key];
          newValue = customizer ? customizer(objValue, key, nested) : undefined;
          if (newValue === undefined) {
            newValue = isObject(objValue)
              ? objValue
              : (isIndex(path[index + 1]) ? [] : {});
          }
        }
        assignValue(nested, key, newValue);
        nested = nested[key];
      }
      return object;
    }

    /**
     * The base implementation of `setData` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var baseSetData = !metaMap ? identity : function(func, data) {
      metaMap.set(func, data);
      return func;
    };

    /**
     * The base implementation of `setToString` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var baseSetToString = !defineProperty ? identity : function(func, string) {
      return defineProperty(func, 'toString', {
        'configurable': true,
        'enumerable': false,
        'value': constant(string),
        'writable': true
      });
    };

    /**
     * The base implementation of `_.shuffle`.
     *
     * @private
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function baseShuffle(collection) {
      return shuffleSelf(values(collection));
    }

    /**
     * The base implementation of `_.slice` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseSlice(array, start, end) {
      var index = -1,
          length = array.length;

      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = end > length ? length : end;
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : ((end - start) >>> 0);
      start >>>= 0;

      var result = Array(length);
      while (++index < length) {
        result[index] = array[index + start];
      }
      return result;
    }

    /**
     * The base implementation of `_.some` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function baseSome(collection, predicate) {
      var result;

      baseEach(collection, function(value, index, collection) {
        result = predicate(value, index, collection);
        return !result;
      });
      return !!result;
    }

    /**
     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
     * performs a binary search of `array` to determine the index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndex(array, value, retHighest) {
      var low = 0,
          high = array == null ? low : array.length;

      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
        while (low < high) {
          var mid = (low + high) >>> 1,
              computed = array[mid];

          if (computed !== null && !isSymbol(computed) &&
              (retHighest ? (computed <= value) : (computed < value))) {
            low = mid + 1;
          } else {
            high = mid;
          }
        }
        return high;
      }
      return baseSortedIndexBy(array, value, identity, retHighest);
    }

    /**
     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
     * which invokes `iteratee` for `value` and each element of `array` to compute
     * their sort ranking. The iteratee is invoked with one argument; (value).
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} iteratee The iteratee invoked per element.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndexBy(array, value, iteratee, retHighest) {
      var low = 0,
          high = array == null ? 0 : array.length;
      if (high === 0) {
        return 0;
      }

      value = iteratee(value);
      var valIsNaN = value !== value,
          valIsNull = value === null,
          valIsSymbol = isSymbol(value),
          valIsUndefined = value === undefined;

      while (low < high) {
        var mid = nativeFloor((low + high) / 2),
            computed = iteratee(array[mid]),
            othIsDefined = computed !== undefined,
            othIsNull = computed === null,
            othIsReflexive = computed === computed,
            othIsSymbol = isSymbol(computed);

        if (valIsNaN) {
          var setLow = retHighest || othIsReflexive;
        } else if (valIsUndefined) {
          setLow = othIsReflexive && (retHighest || othIsDefined);
        } else if (valIsNull) {
          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
        } else if (valIsSymbol) {
          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
        } else if (othIsNull || othIsSymbol) {
          setLow = false;
        } else {
          setLow = retHighest ? (computed <= value) : (computed < value);
        }
        if (setLow) {
          low = mid + 1;
        } else {
          high = mid;
        }
      }
      return nativeMin(high, MAX_ARRAY_INDEX);
    }

    /**
     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
     * support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseSortedUniq(array, iteratee) {
      var index = -1,
          length = array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        if (!index || !eq(computed, seen)) {
          var seen = computed;
          result[resIndex++] = value === 0 ? 0 : value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.toNumber` which doesn't ensure correct
     * conversions of binary, hexadecimal, or octal string values.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     */
    function baseToNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      return +value;
    }

    /**
     * The base implementation of `_.toString` which doesn't convert nullish
     * values to empty strings.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {string} Returns the string.
     */
    function baseToString(value) {
      // Exit early for strings to avoid a performance hit in some environments.
      if (typeof value == 'string') {
        return value;
      }
      if (isArray(value)) {
        // Recursively convert values (susceptible to call stack limits).
        return arrayMap(value, baseToString) + '';
      }
      if (isSymbol(value)) {
        return symbolToString ? symbolToString.call(value) : '';
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * The base implementation of `_.uniqBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseUniq(array, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          length = array.length,
          isCommon = true,
          result = [],
          seen = result;

      if (comparator) {
        isCommon = false;
        includes = arrayIncludesWith;
      }
      else if (length >= LARGE_ARRAY_SIZE) {
        var set = iteratee ? null : createSet(array);
        if (set) {
          return setToArray(set);
        }
        isCommon = false;
        includes = cacheHas;
        seen = new SetCache;
      }
      else {
        seen = iteratee ? [] : result;
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var seenIndex = seen.length;
          while (seenIndex--) {
            if (seen[seenIndex] === computed) {
              continue outer;
            }
          }
          if (iteratee) {
            seen.push(computed);
          }
          result.push(value);
        }
        else if (!includes(seen, computed, comparator)) {
          if (seen !== result) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.unset`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The property path to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     */
    function baseUnset(object, path) {
      path = castPath(path, object);
      object = parent(object, path);
      return object == null || delete object[toKey(last(path))];
    }

    /**
     * The base implementation of `_.update`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to update.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseUpdate(object, path, updater, customizer) {
      return baseSet(object, path, updater(baseGet(object, path)), customizer);
    }

    /**
     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
     * without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {Function} predicate The function invoked per iteration.
     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseWhile(array, predicate, isDrop, fromRight) {
      var length = array.length,
          index = fromRight ? length : -1;

      while ((fromRight ? index-- : ++index < length) &&
        predicate(array[index], index, array)) {}

      return isDrop
        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
    }

    /**
     * The base implementation of `wrapperValue` which returns the result of
     * performing a sequence of actions on the unwrapped `value`, where each
     * successive action is supplied the return value of the previous.
     *
     * @private
     * @param {*} value The unwrapped value.
     * @param {Array} actions Actions to perform to resolve the unwrapped value.
     * @returns {*} Returns the resolved value.
     */
    function baseWrapperValue(value, actions) {
      var result = value;
      if (result instanceof LazyWrapper) {
        result = result.value();
      }
      return arrayReduce(actions, function(result, action) {
        return action.func.apply(action.thisArg, arrayPush([result], action.args));
      }, result);
    }

    /**
     * The base implementation of methods like `_.xor`, without support for
     * iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of values.
     */
    function baseXor(arrays, iteratee, comparator) {
      var length = arrays.length;
      if (length < 2) {
        return length ? baseUniq(arrays[0]) : [];
      }
      var index = -1,
          result = Array(length);

      while (++index < length) {
        var array = arrays[index],
            othIndex = -1;

        while (++othIndex < length) {
          if (othIndex != index) {
            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
          }
        }
      }
      return baseUniq(baseFlatten(result, 1), iteratee, comparator);
    }

    /**
     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
     *
     * @private
     * @param {Array} props The property identifiers.
     * @param {Array} values The property values.
     * @param {Function} assignFunc The function to assign values.
     * @returns {Object} Returns the new object.
     */
    function baseZipObject(props, values, assignFunc) {
      var index = -1,
          length = props.length,
          valsLength = values.length,
          result = {};

      while (++index < length) {
        var value = index < valsLength ? values[index] : undefined;
        assignFunc(result, props[index], value);
      }
      return result;
    }

    /**
     * Casts `value` to an empty array if it's not an array like object.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Array|Object} Returns the cast array-like object.
     */
    function castArrayLikeObject(value) {
      return isArrayLikeObject(value) ? value : [];
    }

    /**
     * Casts `value` to `identity` if it's not a function.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Function} Returns cast function.
     */
    function castFunction(value) {
      return typeof value == 'function' ? value : identity;
    }

    /**
     * Casts `value` to a path array if it's not one.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {Object} [object] The object to query keys on.
     * @returns {Array} Returns the cast property path array.
     */
    function castPath(value, object) {
      if (isArray(value)) {
        return value;
      }
      return isKey(value, object) ? [value] : stringToPath(toString(value));
    }

    /**
     * A `baseRest` alias which can be replaced with `identity` by module
     * replacement plugins.
     *
     * @private
     * @type {Function}
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    var castRest = baseRest;

    /**
     * Casts `array` to a slice if it's needed.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {number} start The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the cast slice.
     */
    function castSlice(array, start, end) {
      var length = array.length;
      end = end === undefined ? length : end;
      return (!start && end >= length) ? array : baseSlice(array, start, end);
    }

    /**
     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
     *
     * @private
     * @param {number|Object} id The timer id or timeout object of the timer to clear.
     */
    var clearTimeout = ctxClearTimeout || function(id) {
      return root.clearTimeout(id);
    };

    /**
     * Creates a clone of  `buffer`.
     *
     * @private
     * @param {Buffer} buffer The buffer to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Buffer} Returns the cloned buffer.
     */
    function cloneBuffer(buffer, isDeep) {
      if (isDeep) {
        return buffer.slice();
      }
      var length = buffer.length,
          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);

      buffer.copy(result);
      return result;
    }

    /**
     * Creates a clone of `arrayBuffer`.
     *
     * @private
     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
     * @returns {ArrayBuffer} Returns the cloned array buffer.
     */
    function cloneArrayBuffer(arrayBuffer) {
      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
      new Uint8Array(result).set(new Uint8Array(arrayBuffer));
      return result;
    }

    /**
     * Creates a clone of `dataView`.
     *
     * @private
     * @param {Object} dataView The data view to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned data view.
     */
    function cloneDataView(dataView, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
    }

    /**
     * Creates a clone of `regexp`.
     *
     * @private
     * @param {Object} regexp The regexp to clone.
     * @returns {Object} Returns the cloned regexp.
     */
    function cloneRegExp(regexp) {
      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
      result.lastIndex = regexp.lastIndex;
      return result;
    }

    /**
     * Creates a clone of the `symbol` object.
     *
     * @private
     * @param {Object} symbol The symbol object to clone.
     * @returns {Object} Returns the cloned symbol object.
     */
    function cloneSymbol(symbol) {
      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
    }

    /**
     * Creates a clone of `typedArray`.
     *
     * @private
     * @param {Object} typedArray The typed array to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned typed array.
     */
    function cloneTypedArray(typedArray, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
    }

    /**
     * Compares values to sort them in ascending order.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {number} Returns the sort order indicator for `value`.
     */
    function compareAscending(value, other) {
      if (value !== other) {
        var valIsDefined = value !== undefined,
            valIsNull = value === null,
            valIsReflexive = value === value,
            valIsSymbol = isSymbol(value);

        var othIsDefined = other !== undefined,
            othIsNull = other === null,
            othIsReflexive = other === other,
            othIsSymbol = isSymbol(other);

        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
            (valIsNull && othIsDefined && othIsReflexive) ||
            (!valIsDefined && othIsReflexive) ||
            !valIsReflexive) {
          return 1;
        }
        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
            (othIsNull && valIsDefined && valIsReflexive) ||
            (!othIsDefined && valIsReflexive) ||
            !othIsReflexive) {
          return -1;
        }
      }
      return 0;
    }

    /**
     * Used by `_.orderBy` to compare multiple properties of a value to another
     * and stable sort them.
     *
     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
     * specify an order of "desc" for descending or "asc" for ascending sort order
     * of corresponding values.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {boolean[]|string[]} orders The order to sort by for each property.
     * @returns {number} Returns the sort order indicator for `object`.
     */
    function compareMultiple(object, other, orders) {
      var index = -1,
          objCriteria = object.criteria,
          othCriteria = other.criteria,
          length = objCriteria.length,
          ordersLength = orders.length;

      while (++index < length) {
        var result = compareAscending(objCriteria[index], othCriteria[index]);
        if (result) {
          if (index >= ordersLength) {
            return result;
          }
          var order = orders[index];
          return result * (order == 'desc' ? -1 : 1);
        }
      }
      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
      // that causes it, under certain circumstances, to provide the same value for
      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
      // for more details.
      //
      // This also ensures a stable sort in V8 and other engines.
      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
      return object.index - other.index;
    }

    /**
     * Creates an array that is the composition of partially applied arguments,
     * placeholders, and provided arguments into a single array of arguments.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to prepend to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgs(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersLength = holders.length,
          leftIndex = -1,
          leftLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(leftLength + rangeLength),
          isUncurried = !isCurried;

      while (++leftIndex < leftLength) {
        result[leftIndex] = partials[leftIndex];
      }
      while (++argsIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[holders[argsIndex]] = args[argsIndex];
        }
      }
      while (rangeLength--) {
        result[leftIndex++] = args[argsIndex++];
      }
      return result;
    }

    /**
     * This function is like `composeArgs` except that the arguments composition
     * is tailored for `_.partialRight`.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to append to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgsRight(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersIndex = -1,
          holdersLength = holders.length,
          rightIndex = -1,
          rightLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(rangeLength + rightLength),
          isUncurried = !isCurried;

      while (++argsIndex < rangeLength) {
        result[argsIndex] = args[argsIndex];
      }
      var offset = argsIndex;
      while (++rightIndex < rightLength) {
        result[offset + rightIndex] = partials[rightIndex];
      }
      while (++holdersIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[offset + holders[holdersIndex]] = args[argsIndex++];
        }
      }
      return result;
    }

    /**
     * Copies the values of `source` to `array`.
     *
     * @private
     * @param {Array} source The array to copy values from.
     * @param {Array} [array=[]] The array to copy values to.
     * @returns {Array} Returns `array`.
     */
    function copyArray(source, array) {
      var index = -1,
          length = source.length;

      array || (array = Array(length));
      while (++index < length) {
        array[index] = source[index];
      }
      return array;
    }

    /**
     * Copies properties of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy properties from.
     * @param {Array} props The property identifiers to copy.
     * @param {Object} [object={}] The object to copy properties to.
     * @param {Function} [customizer] The function to customize copied values.
     * @returns {Object} Returns `object`.
     */
    function copyObject(source, props, object, customizer) {
      var isNew = !object;
      object || (object = {});

      var index = -1,
          length = props.length;

      while (++index < length) {
        var key = props[index];

        var newValue = customizer
          ? customizer(object[key], source[key], key, object, source)
          : undefined;

        if (newValue === undefined) {
          newValue = source[key];
        }
        if (isNew) {
          baseAssignValue(object, key, newValue);
        } else {
          assignValue(object, key, newValue);
        }
      }
      return object;
    }

    /**
     * Copies own symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbols(source, object) {
      return copyObject(source, getSymbols(source), object);
    }

    /**
     * Copies own and inherited symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbolsIn(source, object) {
      return copyObject(source, getSymbolsIn(source), object);
    }

    /**
     * Creates a function like `_.groupBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} [initializer] The accumulator object initializer.
     * @returns {Function} Returns the new aggregator function.
     */
    function createAggregator(setter, initializer) {
      return function(collection, iteratee) {
        var func = isArray(collection) ? arrayAggregator : baseAggregator,
            accumulator = initializer ? initializer() : {};

        return func(collection, setter, getIteratee(iteratee, 2), accumulator);
      };
    }

    /**
     * Creates a function like `_.assign`.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @returns {Function} Returns the new assigner function.
     */
    function createAssigner(assigner) {
      return baseRest(function(object, sources) {
        var index = -1,
            length = sources.length,
            customizer = length > 1 ? sources[length - 1] : undefined,
            guard = length > 2 ? sources[2] : undefined;

        customizer = (assigner.length > 3 && typeof customizer == 'function')
          ? (length--, customizer)
          : undefined;

        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
          customizer = length < 3 ? undefined : customizer;
          length = 1;
        }
        object = Object(object);
        while (++index < length) {
          var source = sources[index];
          if (source) {
            assigner(object, source, index, customizer);
          }
        }
        return object;
      });
    }

    /**
     * Creates a `baseEach` or `baseEachRight` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseEach(eachFunc, fromRight) {
      return function(collection, iteratee) {
        if (collection == null) {
          return collection;
        }
        if (!isArrayLike(collection)) {
          return eachFunc(collection, iteratee);
        }
        var length = collection.length,
            index = fromRight ? length : -1,
            iterable = Object(collection);

        while ((fromRight ? index-- : ++index < length)) {
          if (iteratee(iterable[index], index, iterable) === false) {
            break;
          }
        }
        return collection;
      };
    }

    /**
     * Creates a base function for methods like `_.forIn` and `_.forOwn`.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseFor(fromRight) {
      return function(object, iteratee, keysFunc) {
        var index = -1,
            iterable = Object(object),
            props = keysFunc(object),
            length = props.length;

        while (length--) {
          var key = props[fromRight ? length : ++index];
          if (iteratee(iterable[key], key, iterable) === false) {
            break;
          }
        }
        return object;
      };
    }

    /**
     * Creates a function that wraps `func` to invoke it with the optional `this`
     * binding of `thisArg`.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createBind(func, bitmask, thisArg) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(isBind ? thisArg : this, arguments);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.lowerFirst`.
     *
     * @private
     * @param {string} methodName The name of the `String` case method to use.
     * @returns {Function} Returns the new case function.
     */
    function createCaseFirst(methodName) {
      return function(string) {
        string = toString(string);

        var strSymbols = hasUnicode(string)
          ? stringToArray(string)
          : undefined;

        var chr = strSymbols
          ? strSymbols[0]
          : string.charAt(0);

        var trailing = strSymbols
          ? castSlice(strSymbols, 1).join('')
          : string.slice(1);

        return chr[methodName]() + trailing;
      };
    }

    /**
     * Creates a function like `_.camelCase`.
     *
     * @private
     * @param {Function} callback The function to combine each word.
     * @returns {Function} Returns the new compounder function.
     */
    function createCompounder(callback) {
      return function(string) {
        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
      };
    }

    /**
     * Creates a function that produces an instance of `Ctor` regardless of
     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
     *
     * @private
     * @param {Function} Ctor The constructor to wrap.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCtor(Ctor) {
      return function() {
        // Use a `switch` statement to work with class constructors. See
        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
        // for more details.
        var args = arguments;
        switch (args.length) {
          case 0: return new Ctor;
          case 1: return new Ctor(args[0]);
          case 2: return new Ctor(args[0], args[1]);
          case 3: return new Ctor(args[0], args[1], args[2]);
          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
        }
        var thisBinding = baseCreate(Ctor.prototype),
            result = Ctor.apply(thisBinding, args);

        // Mimic the constructor's `return` behavior.
        // See https://es5.github.io/#x13.2.2 for more details.
        return isObject(result) ? result : thisBinding;
      };
    }

    /**
     * Creates a function that wraps `func` to enable currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {number} arity The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCurry(func, bitmask, arity) {
      var Ctor = createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length,
            placeholder = getHolder(wrapper);

        while (index--) {
          args[index] = arguments[index];
        }
        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
          ? []
          : replaceHolders(args, placeholder);

        length -= holders.length;
        if (length < arity) {
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, undefined,
            args, holders, undefined, undefined, arity - length);
        }
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return apply(fn, this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.find` or `_.findLast` function.
     *
     * @private
     * @param {Function} findIndexFunc The function to find the collection index.
     * @returns {Function} Returns the new find function.
     */
    function createFind(findIndexFunc) {
      return function(collection, predicate, fromIndex) {
        var iterable = Object(collection);
        if (!isArrayLike(collection)) {
          var iteratee = getIteratee(predicate, 3);
          collection = keys(collection);
          predicate = function(key) { return iteratee(iterable[key], key, iterable); };
        }
        var index = findIndexFunc(collection, predicate, fromIndex);
        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
      };
    }

    /**
     * Creates a `_.flow` or `_.flowRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new flow function.
     */
    function createFlow(fromRight) {
      return flatRest(function(funcs) {
        var length = funcs.length,
            index = length,
            prereq = LodashWrapper.prototype.thru;

        if (fromRight) {
          funcs.reverse();
        }
        while (index--) {
          var func = funcs[index];
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
            var wrapper = new LodashWrapper([], true);
          }
        }
        index = wrapper ? index : length;
        while (++index < length) {
          func = funcs[index];

          var funcName = getFuncName(func),
              data = funcName == 'wrapper' ? getData(func) : undefined;

          if (data && isLaziable(data[0]) &&
                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
                !data[4].length && data[9] == 1
              ) {
            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
          } else {
            wrapper = (func.length == 1 && isLaziable(func))
              ? wrapper[funcName]()
              : wrapper.thru(func);
          }
        }
        return function() {
          var args = arguments,
              value = args[0];

          if (wrapper && args.length == 1 && isArray(value)) {
            return wrapper.plant(value).value();
          }
          var index = 0,
              result = length ? funcs[index].apply(this, args) : value;

          while (++index < length) {
            result = funcs[index].call(this, result);
          }
          return result;
        };
      });
    }

    /**
     * Creates a function that wraps `func` to invoke it with optional `this`
     * binding of `thisArg`, partial application, and currying.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [partialsRight] The arguments to append to those provided
     *  to the new function.
     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
      var isAry = bitmask & WRAP_ARY_FLAG,
          isBind = bitmask & WRAP_BIND_FLAG,
          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
          isFlip = bitmask & WRAP_FLIP_FLAG,
          Ctor = isBindKey ? undefined : createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length;

        while (index--) {
          args[index] = arguments[index];
        }
        if (isCurried) {
          var placeholder = getHolder(wrapper),
              holdersCount = countHolders(args, placeholder);
        }
        if (partials) {
          args = composeArgs(args, partials, holders, isCurried);
        }
        if (partialsRight) {
          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
        }
        length -= holdersCount;
        if (isCurried && length < arity) {
          var newHolders = replaceHolders(args, placeholder);
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, thisArg,
            args, newHolders, argPos, ary, arity - length
          );
        }
        var thisBinding = isBind ? thisArg : this,
            fn = isBindKey ? thisBinding[func] : func;

        length = args.length;
        if (argPos) {
          args = reorder(args, argPos);
        } else if (isFlip && length > 1) {
          args.reverse();
        }
        if (isAry && ary < length) {
          args.length = ary;
        }
        if (this && this !== root && this instanceof wrapper) {
          fn = Ctor || createCtor(fn);
        }
        return fn.apply(thisBinding, args);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.invertBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} toIteratee The function to resolve iteratees.
     * @returns {Function} Returns the new inverter function.
     */
    function createInverter(setter, toIteratee) {
      return function(object, iteratee) {
        return baseInverter(object, setter, toIteratee(iteratee), {});
      };
    }

    /**
     * Creates a function that performs a mathematical operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @param {number} [defaultValue] The value used for `undefined` arguments.
     * @returns {Function} Returns the new mathematical operation function.
     */
    function createMathOperation(operator, defaultValue) {
      return function(value, other) {
        var result;
        if (value === undefined && other === undefined) {
          return defaultValue;
        }
        if (value !== undefined) {
          result = value;
        }
        if (other !== undefined) {
          if (result === undefined) {
            return other;
          }
          if (typeof value == 'string' || typeof other == 'string') {
            value = baseToString(value);
            other = baseToString(other);
          } else {
            value = baseToNumber(value);
            other = baseToNumber(other);
          }
          result = operator(value, other);
        }
        return result;
      };
    }

    /**
     * Creates a function like `_.over`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over iteratees.
     * @returns {Function} Returns the new over function.
     */
    function createOver(arrayFunc) {
      return flatRest(function(iteratees) {
        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
        return baseRest(function(args) {
          var thisArg = this;
          return arrayFunc(iteratees, function(iteratee) {
            return apply(iteratee, thisArg, args);
          });
        });
      });
    }

    /**
     * Creates the padding for `string` based on `length`. The `chars` string
     * is truncated if the number of characters exceeds `length`.
     *
     * @private
     * @param {number} length The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padding for `string`.
     */
    function createPadding(length, chars) {
      chars = chars === undefined ? ' ' : baseToString(chars);

      var charsLength = chars.length;
      if (charsLength < 2) {
        return charsLength ? baseRepeat(chars, length) : chars;
      }
      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
      return hasUnicode(chars)
        ? castSlice(stringToArray(result), 0, length).join('')
        : result.slice(0, length);
    }

    /**
     * Creates a function that wraps `func` to invoke it with the `this` binding
     * of `thisArg` and `partials` prepended to the arguments it receives.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {Array} partials The arguments to prepend to those provided to
     *  the new function.
     * @returns {Function} Returns the new wrapped function.
     */
    function createPartial(func, bitmask, thisArg, partials) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var argsIndex = -1,
            argsLength = arguments.length,
            leftIndex = -1,
            leftLength = partials.length,
            args = Array(leftLength + argsLength),
            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;

        while (++leftIndex < leftLength) {
          args[leftIndex] = partials[leftIndex];
        }
        while (argsLength--) {
          args[leftIndex++] = arguments[++argsIndex];
        }
        return apply(fn, isBind ? thisArg : this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.range` or `_.rangeRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new range function.
     */
    function createRange(fromRight) {
      return function(start, end, step) {
        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
          end = step = undefined;
        }
        // Ensure the sign of `-0` is preserved.
        start = toFinite(start);
        if (end === undefined) {
          end = start;
          start = 0;
        } else {
          end = toFinite(end);
        }
        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
        return baseRange(start, end, step, fromRight);
      };
    }

    /**
     * Creates a function that performs a relational operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @returns {Function} Returns the new relational operation function.
     */
    function createRelationalOperation(operator) {
      return function(value, other) {
        if (!(typeof value == 'string' && typeof other == 'string')) {
          value = toNumber(value);
          other = toNumber(other);
        }
        return operator(value, other);
      };
    }

    /**
     * Creates a function that wraps `func` to continue currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {Function} wrapFunc The function to create the `func` wrapper.
     * @param {*} placeholder The placeholder value.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
      var isCurry = bitmask & WRAP_CURRY_FLAG,
          newHolders = isCurry ? holders : undefined,
          newHoldersRight = isCurry ? undefined : holders,
          newPartials = isCurry ? partials : undefined,
          newPartialsRight = isCurry ? undefined : partials;

      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);

      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
      }
      var newData = [
        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
        newHoldersRight, argPos, ary, arity
      ];

      var result = wrapFunc.apply(undefined, newData);
      if (isLaziable(func)) {
        setData(result, newData);
      }
      result.placeholder = placeholder;
      return setWrapToString(result, func, bitmask);
    }

    /**
     * Creates a function like `_.round`.
     *
     * @private
     * @param {string} methodName The name of the `Math` method to use when rounding.
     * @returns {Function} Returns the new round function.
     */
    function createRound(methodName) {
      var func = Math[methodName];
      return function(number, precision) {
        number = toNumber(number);
        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
        if (precision && nativeIsFinite(number)) {
          // Shift with exponential notation to avoid floating-point issues.
          // See [MDN](https://mdn.io/round#Examples) for more details.
          var pair = (toString(number) + 'e').split('e'),
              value = func(pair[0] + 'e' + (+pair[1] + precision));

          pair = (toString(value) + 'e').split('e');
          return +(pair[0] + 'e' + (+pair[1] - precision));
        }
        return func(number);
      };
    }

    /**
     * Creates a set object of `values`.
     *
     * @private
     * @param {Array} values The values to add to the set.
     * @returns {Object} Returns the new set.
     */
    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
      return new Set(values);
    };

    /**
     * Creates a `_.toPairs` or `_.toPairsIn` function.
     *
     * @private
     * @param {Function} keysFunc The function to get the keys of a given object.
     * @returns {Function} Returns the new pairs function.
     */
    function createToPairs(keysFunc) {
      return function(object) {
        var tag = getTag(object);
        if (tag == mapTag) {
          return mapToArray(object);
        }
        if (tag == setTag) {
          return setToPairs(object);
        }
        return baseToPairs(object, keysFunc(object));
      };
    }

    /**
     * Creates a function that either curries or invokes `func` with optional
     * `this` binding and partially applied arguments.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags.
     *    1 - `_.bind`
     *    2 - `_.bindKey`
     *    4 - `_.curry` or `_.curryRight` of a bound function
     *    8 - `_.curry`
     *   16 - `_.curryRight`
     *   32 - `_.partial`
     *   64 - `_.partialRight`
     *  128 - `_.rearg`
     *  256 - `_.ary`
     *  512 - `_.flip`
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to be partially applied.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
      if (!isBindKey && typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = partials ? partials.length : 0;
      if (!length) {
        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
        partials = holders = undefined;
      }
      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
      arity = arity === undefined ? arity : toInteger(arity);
      length -= holders ? holders.length : 0;

      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
        var partialsRight = partials,
            holdersRight = holders;

        partials = holders = undefined;
      }
      var data = isBindKey ? undefined : getData(func);

      var newData = [
        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
        argPos, ary, arity
      ];

      if (data) {
        mergeData(newData, data);
      }
      func = newData[0];
      bitmask = newData[1];
      thisArg = newData[2];
      partials = newData[3];
      holders = newData[4];
      arity = newData[9] = newData[9] === undefined
        ? (isBindKey ? 0 : func.length)
        : nativeMax(newData[9] - length, 0);

      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
      }
      if (!bitmask || bitmask == WRAP_BIND_FLAG) {
        var result = createBind(func, bitmask, thisArg);
      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
        result = createCurry(func, bitmask, arity);
      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
        result = createPartial(func, bitmask, thisArg, partials);
      } else {
        result = createHybrid.apply(undefined, newData);
      }
      var setter = data ? baseSetData : setData;
      return setWrapToString(setter(result, newData), func, bitmask);
    }

    /**
     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
     * of source objects to the destination object for all destination properties
     * that resolve to `undefined`.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to assign.
     * @param {Object} object The parent object of `objValue`.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsAssignIn(objValue, srcValue, key, object) {
      if (objValue === undefined ||
          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
        return srcValue;
      }
      return objValue;
    }

    /**
     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
     * objects into destination objects that are passed thru.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to merge.
     * @param {Object} object The parent object of `objValue`.
     * @param {Object} source The parent object of `srcValue`.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
      if (isObject(objValue) && isObject(srcValue)) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, objValue);
        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
        stack['delete'](srcValue);
      }
      return objValue;
    }

    /**
     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
     * objects.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {string} key The key of the property to inspect.
     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
     */
    function customOmitClone(value) {
      return isPlainObject(value) ? undefined : value;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for arrays with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Array} array The array to compare.
     * @param {Array} other The other array to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `array` and `other` objects.
     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
     */
    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          arrLength = array.length,
          othLength = other.length;

      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
        return false;
      }
      // Check that cyclic values are equal.
      var arrStacked = stack.get(array);
      var othStacked = stack.get(other);
      if (arrStacked && othStacked) {
        return arrStacked == other && othStacked == array;
      }
      var index = -1,
          result = true,
          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;

      stack.set(array, other);
      stack.set(other, array);

      // Ignore non-index properties.
      while (++index < arrLength) {
        var arrValue = array[index],
            othValue = other[index];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, arrValue, index, other, array, stack)
            : customizer(arrValue, othValue, index, array, other, stack);
        }
        if (compared !== undefined) {
          if (compared) {
            continue;
          }
          result = false;
          break;
        }
        // Recursively compare arrays (susceptible to call stack limits).
        if (seen) {
          if (!arraySome(other, function(othValue, othIndex) {
                if (!cacheHas(seen, othIndex) &&
                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
                  return seen.push(othIndex);
                }
              })) {
            result = false;
            break;
          }
        } else if (!(
              arrValue === othValue ||
                equalFunc(arrValue, othValue, bitmask, customizer, stack)
            )) {
          result = false;
          break;
        }
      }
      stack['delete'](array);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for comparing objects of
     * the same `toStringTag`.
     *
     * **Note:** This function only supports comparing values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {string} tag The `toStringTag` of the objects to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
      switch (tag) {
        case dataViewTag:
          if ((object.byteLength != other.byteLength) ||
              (object.byteOffset != other.byteOffset)) {
            return false;
          }
          object = object.buffer;
          other = other.buffer;

        case arrayBufferTag:
          if ((object.byteLength != other.byteLength) ||
              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
            return false;
          }
          return true;

        case boolTag:
        case dateTag:
        case numberTag:
          // Coerce booleans to `1` or `0` and dates to milliseconds.
          // Invalid dates are coerced to `NaN`.
          return eq(+object, +other);

        case errorTag:
          return object.name == other.name && object.message == other.message;

        case regexpTag:
        case stringTag:
          // Coerce regexes to strings and treat strings, primitives and objects,
          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
          // for more details.
          return object == (other + '');

        case mapTag:
          var convert = mapToArray;

        case setTag:
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
          convert || (convert = setToArray);

          if (object.size != other.size && !isPartial) {
            return false;
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(object);
          if (stacked) {
            return stacked == other;
          }
          bitmask |= COMPARE_UNORDERED_FLAG;

          // Recursively compare objects (susceptible to call stack limits).
          stack.set(object, other);
          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
          stack['delete'](object);
          return result;

        case symbolTag:
          if (symbolValueOf) {
            return symbolValueOf.call(object) == symbolValueOf.call(other);
          }
      }
      return false;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for objects with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          objProps = getAllKeys(object),
          objLength = objProps.length,
          othProps = getAllKeys(other),
          othLength = othProps.length;

      if (objLength != othLength && !isPartial) {
        return false;
      }
      var index = objLength;
      while (index--) {
        var key = objProps[index];
        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
          return false;
        }
      }
      // Check that cyclic values are equal.
      var objStacked = stack.get(object);
      var othStacked = stack.get(other);
      if (objStacked && othStacked) {
        return objStacked == other && othStacked == object;
      }
      var result = true;
      stack.set(object, other);
      stack.set(other, object);

      var skipCtor = isPartial;
      while (++index < objLength) {
        key = objProps[index];
        var objValue = object[key],
            othValue = other[key];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, objValue, key, other, object, stack)
            : customizer(objValue, othValue, key, object, other, stack);
        }
        // Recursively compare objects (susceptible to call stack limits).
        if (!(compared === undefined
              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
              : compared
            )) {
          result = false;
          break;
        }
        skipCtor || (skipCtor = key == 'constructor');
      }
      if (result && !skipCtor) {
        var objCtor = object.constructor,
            othCtor = other.constructor;

        // Non `Object` object instances with different constructors are not equal.
        if (objCtor != othCtor &&
            ('constructor' in object && 'constructor' in other) &&
            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
          result = false;
        }
      }
      stack['delete'](object);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseRest` which flattens the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    function flatRest(func) {
      return setToString(overRest(func, undefined, flatten), func + '');
    }

    /**
     * Creates an array of own enumerable property names and symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeys(object) {
      return baseGetAllKeys(object, keys, getSymbols);
    }

    /**
     * Creates an array of own and inherited enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeysIn(object) {
      return baseGetAllKeys(object, keysIn, getSymbolsIn);
    }

    /**
     * Gets metadata for `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {*} Returns the metadata for `func`.
     */
    var getData = !metaMap ? noop : function(func) {
      return metaMap.get(func);
    };

    /**
     * Gets the name of `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {string} Returns the function name.
     */
    function getFuncName(func) {
      var result = (func.name + ''),
          array = realNames[result],
          length = hasOwnProperty.call(realNames, result) ? array.length : 0;

      while (length--) {
        var data = array[length],
            otherFunc = data.func;
        if (otherFunc == null || otherFunc == func) {
          return data.name;
        }
      }
      return result;
    }

    /**
     * Gets the argument placeholder value for `func`.
     *
     * @private
     * @param {Function} func The function to inspect.
     * @returns {*} Returns the placeholder value.
     */
    function getHolder(func) {
      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
      return object.placeholder;
    }

    /**
     * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
     * this function returns the custom method, otherwise it returns `baseIteratee`.
     * If arguments are provided, the chosen function is invoked with them and
     * its result is returned.
     *
     * @private
     * @param {*} [value] The value to convert to an iteratee.
     * @param {number} [arity] The arity of the created iteratee.
     * @returns {Function} Returns the chosen function or its result.
     */
    function getIteratee() {
      var result = lodash.iteratee || iteratee;
      result = result === iteratee ? baseIteratee : result;
      return arguments.length ? result(arguments[0], arguments[1]) : result;
    }

    /**
     * Gets the data for `map`.
     *
     * @private
     * @param {Object} map The map to query.
     * @param {string} key The reference key.
     * @returns {*} Returns the map data.
     */
    function getMapData(map, key) {
      var data = map.__data__;
      return isKeyable(key)
        ? data[typeof key == 'string' ? 'string' : 'hash']
        : data.map;
    }

    /**
     * Gets the property names, values, and compare flags of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the match data of `object`.
     */
    function getMatchData(object) {
      var result = keys(object),
          length = result.length;

      while (length--) {
        var key = result[length],
            value = object[key];

        result[length] = [key, value, isStrictComparable(value)];
      }
      return result;
    }

    /**
     * Gets the native function at `key` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the method to get.
     * @returns {*} Returns the function if it's native, else `undefined`.
     */
    function getNative(object, key) {
      var value = getValue(object, key);
      return baseIsNative(value) ? value : undefined;
    }

    /**
     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the raw `toStringTag`.
     */
    function getRawTag(value) {
      var isOwn = hasOwnProperty.call(value, symToStringTag),
          tag = value[symToStringTag];

      try {
        value[symToStringTag] = undefined;
        var unmasked = true;
      } catch (e) {}

      var result = nativeObjectToString.call(value);
      if (unmasked) {
        if (isOwn) {
          value[symToStringTag] = tag;
        } else {
          delete value[symToStringTag];
        }
      }
      return result;
    }

    /**
     * Creates an array of the own enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
      if (object == null) {
        return [];
      }
      object = Object(object);
      return arrayFilter(nativeGetSymbols(object), function(symbol) {
        return propertyIsEnumerable.call(object, symbol);
      });
    };

    /**
     * Creates an array of the own and inherited enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
      var result = [];
      while (object) {
        arrayPush(result, getSymbols(object));
        object = getPrototype(object);
      }
      return result;
    };

    /**
     * Gets the `toStringTag` of `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    var getTag = baseGetTag;

    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
        (Map && getTag(new Map) != mapTag) ||
        (Promise && getTag(Promise.resolve()) != promiseTag) ||
        (Set && getTag(new Set) != setTag) ||
        (WeakMap && getTag(new WeakMap) != weakMapTag)) {
      getTag = function(value) {
        var result = baseGetTag(value),
            Ctor = result == objectTag ? value.constructor : undefined,
            ctorString = Ctor ? toSource(Ctor) : '';

        if (ctorString) {
          switch (ctorString) {
            case dataViewCtorString: return dataViewTag;
            case mapCtorString: return mapTag;
            case promiseCtorString: return promiseTag;
            case setCtorString: return setTag;
            case weakMapCtorString: return weakMapTag;
          }
        }
        return result;
      };
    }

    /**
     * Gets the view, applying any `transforms` to the `start` and `end` positions.
     *
     * @private
     * @param {number} start The start of the view.
     * @param {number} end The end of the view.
     * @param {Array} transforms The transformations to apply to the view.
     * @returns {Object} Returns an object containing the `start` and `end`
     *  positions of the view.
     */
    function getView(start, end, transforms) {
      var index = -1,
          length = transforms.length;

      while (++index < length) {
        var data = transforms[index],
            size = data.size;

        switch (data.type) {
          case 'drop':      start += size; break;
          case 'dropRight': end -= size; break;
          case 'take':      end = nativeMin(end, start + size); break;
          case 'takeRight': start = nativeMax(start, end - size); break;
        }
      }
      return { 'start': start, 'end': end };
    }

    /**
     * Extracts wrapper details from the `source` body comment.
     *
     * @private
     * @param {string} source The source to inspect.
     * @returns {Array} Returns the wrapper details.
     */
    function getWrapDetails(source) {
      var match = source.match(reWrapDetails);
      return match ? match[1].split(reSplitDetails) : [];
    }

    /**
     * Checks if `path` exists on `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @param {Function} hasFunc The function to check properties.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     */
    function hasPath(object, path, hasFunc) {
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          result = false;

      while (++index < length) {
        var key = toKey(path[index]);
        if (!(result = object != null && hasFunc(object, key))) {
          break;
        }
        object = object[key];
      }
      if (result || ++index != length) {
        return result;
      }
      length = object == null ? 0 : object.length;
      return !!length && isLength(length) && isIndex(key, length) &&
        (isArray(object) || isArguments(object));
    }

    /**
     * Initializes an array clone.
     *
     * @private
     * @param {Array} array The array to clone.
     * @returns {Array} Returns the initialized clone.
     */
    function initCloneArray(array) {
      var length = array.length,
          result = new array.constructor(length);

      // Add properties assigned by `RegExp#exec`.
      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
        result.index = array.index;
        result.input = array.input;
      }
      return result;
    }

    /**
     * Initializes an object clone.
     *
     * @private
     * @param {Object} object The object to clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneObject(object) {
      return (typeof object.constructor == 'function' && !isPrototype(object))
        ? baseCreate(getPrototype(object))
        : {};
    }

    /**
     * Initializes an object clone based on its `toStringTag`.
     *
     * **Note:** This function only supports cloning values with tags of
     * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {string} tag The `toStringTag` of the object to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneByTag(object, tag, isDeep) {
      var Ctor = object.constructor;
      switch (tag) {
        case arrayBufferTag:
          return cloneArrayBuffer(object);

        case boolTag:
        case dateTag:
          return new Ctor(+object);

        case dataViewTag:
          return cloneDataView(object, isDeep);

        case float32Tag: case float64Tag:
        case int8Tag: case int16Tag: case int32Tag:
        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
          return cloneTypedArray(object, isDeep);

        case mapTag:
          return new Ctor;

        case numberTag:
        case stringTag:
          return new Ctor(object);

        case regexpTag:
          return cloneRegExp(object);

        case setTag:
          return new Ctor;

        case symbolTag:
          return cloneSymbol(object);
      }
    }

    /**
     * Inserts wrapper `details` in a comment at the top of the `source` body.
     *
     * @private
     * @param {string} source The source to modify.
     * @returns {Array} details The details to insert.
     * @returns {string} Returns the modified source.
     */
    function insertWrapDetails(source, details) {
      var length = details.length;
      if (!length) {
        return source;
      }
      var lastIndex = length - 1;
      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
      details = details.join(length > 2 ? ', ' : ' ');
      return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
    }

    /**
     * Checks if `value` is a flattenable `arguments` object or array.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
     */
    function isFlattenable(value) {
      return isArray(value) || isArguments(value) ||
        !!(spreadableSymbol && value && value[spreadableSymbol]);
    }

    /**
     * Checks if `value` is a valid array-like index.
     *
     * @private
     * @param {*} value The value to check.
     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
     */
    function isIndex(value, length) {
      var type = typeof value;
      length = length == null ? MAX_SAFE_INTEGER : length;

      return !!length &&
        (type == 'number' ||
          (type != 'symbol' && reIsUint.test(value))) &&
            (value > -1 && value % 1 == 0 && value < length);
    }

    /**
     * Checks if the given arguments are from an iteratee call.
     *
     * @private
     * @param {*} value The potential iteratee value argument.
     * @param {*} index The potential iteratee index or key argument.
     * @param {*} object The potential iteratee object argument.
     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
     *  else `false`.
     */
    function isIterateeCall(value, index, object) {
      if (!isObject(object)) {
        return false;
      }
      var type = typeof index;
      if (type == 'number'
            ? (isArrayLike(object) && isIndex(index, object.length))
            : (type == 'string' && index in object)
          ) {
        return eq(object[index], value);
      }
      return false;
    }

    /**
     * Checks if `value` is a property name and not a property path.
     *
     * @private
     * @param {*} value The value to check.
     * @param {Object} [object] The object to query keys on.
     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
     */
    function isKey(value, object) {
      if (isArray(value)) {
        return false;
      }
      var type = typeof value;
      if (type == 'number' || type == 'symbol' || type == 'boolean' ||
          value == null || isSymbol(value)) {
        return true;
      }
      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
        (object != null && value in Object(object));
    }

    /**
     * Checks if `value` is suitable for use as unique object key.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
     */
    function isKeyable(value) {
      var type = typeof value;
      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
        ? (value !== '__proto__')
        : (value === null);
    }

    /**
     * Checks if `func` has a lazy counterpart.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
     *  else `false`.
     */
    function isLaziable(func) {
      var funcName = getFuncName(func),
          other = lodash[funcName];

      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
        return false;
      }
      if (func === other) {
        return true;
      }
      var data = getData(other);
      return !!data && func === data[0];
    }

    /**
     * Checks if `func` has its source masked.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` is masked, else `false`.
     */
    function isMasked(func) {
      return !!maskSrcKey && (maskSrcKey in func);
    }

    /**
     * Checks if `func` is capable of being masked.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
     */
    var isMaskable = coreJsData ? isFunction : stubFalse;

    /**
     * Checks if `value` is likely a prototype object.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
     */
    function isPrototype(value) {
      var Ctor = value && value.constructor,
          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;

      return value === proto;
    }

    /**
     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` if suitable for strict
     *  equality comparisons, else `false`.
     */
    function isStrictComparable(value) {
      return value === value && !isObject(value);
    }

    /**
     * A specialized version of `matchesProperty` for source values suitable
     * for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {string} key The key of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function matchesStrictComparable(key, srcValue) {
      return function(object) {
        if (object == null) {
          return false;
        }
        return object[key] === srcValue &&
          (srcValue !== undefined || (key in Object(object)));
      };
    }

    /**
     * A specialized version of `_.memoize` which clears the memoized function's
     * cache when it exceeds `MAX_MEMOIZE_SIZE`.
     *
     * @private
     * @param {Function} func The function to have its output memoized.
     * @returns {Function} Returns the new memoized function.
     */
    function memoizeCapped(func) {
      var result = memoize(func, function(key) {
        if (cache.size === MAX_MEMOIZE_SIZE) {
          cache.clear();
        }
        return key;
      });

      var cache = result.cache;
      return result;
    }

    /**
     * Merges the function metadata of `source` into `data`.
     *
     * Merging metadata reduces the number of wrappers used to invoke a function.
     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
     * may be applied regardless of execution order. Methods like `_.ary` and
     * `_.rearg` modify function arguments, making the order in which they are
     * executed important, preventing the merging of metadata. However, we make
     * an exception for a safe combined case where curried functions have `_.ary`
     * and or `_.rearg` applied.
     *
     * @private
     * @param {Array} data The destination metadata.
     * @param {Array} source The source metadata.
     * @returns {Array} Returns `data`.
     */
    function mergeData(data, source) {
      var bitmask = data[1],
          srcBitmask = source[1],
          newBitmask = bitmask | srcBitmask,
          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);

      var isCombo =
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));

      // Exit early if metadata can't be merged.
      if (!(isCommon || isCombo)) {
        return data;
      }
      // Use source `thisArg` if available.
      if (srcBitmask & WRAP_BIND_FLAG) {
        data[2] = source[2];
        // Set when currying a bound function.
        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
      }
      // Compose partial arguments.
      var value = source[3];
      if (value) {
        var partials = data[3];
        data[3] = partials ? composeArgs(partials, value, source[4]) : value;
        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
      }
      // Compose partial right arguments.
      value = source[5];
      if (value) {
        partials = data[5];
        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
      }
      // Use source `argPos` if available.
      value = source[7];
      if (value) {
        data[7] = value;
      }
      // Use source `ary` if it's smaller.
      if (srcBitmask & WRAP_ARY_FLAG) {
        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
      }
      // Use source `arity` if one is not provided.
      if (data[9] == null) {
        data[9] = source[9];
      }
      // Use source `func` and merge bitmasks.
      data[0] = source[0];
      data[1] = newBitmask;

      return data;
    }

    /**
     * This function is like
     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * except that it includes inherited enumerable properties.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function nativeKeysIn(object) {
      var result = [];
      if (object != null) {
        for (var key in Object(object)) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * Converts `value` to a string using `Object.prototype.toString`.
     *
     * @private
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     */
    function objectToString(value) {
      return nativeObjectToString.call(value);
    }

    /**
     * A specialized version of `baseRest` which transforms the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @param {Function} transform The rest array transform.
     * @returns {Function} Returns the new function.
     */
    function overRest(func, start, transform) {
      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
      return function() {
        var args = arguments,
            index = -1,
            length = nativeMax(args.length - start, 0),
            array = Array(length);

        while (++index < length) {
          array[index] = args[start + index];
        }
        index = -1;
        var otherArgs = Array(start + 1);
        while (++index < start) {
          otherArgs[index] = args[index];
        }
        otherArgs[start] = transform(array);
        return apply(func, this, otherArgs);
      };
    }

    /**
     * Gets the parent value at `path` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} path The path to get the parent value of.
     * @returns {*} Returns the parent value.
     */
    function parent(object, path) {
      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
    }

    /**
     * Reorder `array` according to the specified indexes where the element at
     * the first index is assigned as the first element, the element at
     * the second index is assigned as the second element, and so on.
     *
     * @private
     * @param {Array} array The array to reorder.
     * @param {Array} indexes The arranged array indexes.
     * @returns {Array} Returns `array`.
     */
    function reorder(array, indexes) {
      var arrLength = array.length,
          length = nativeMin(indexes.length, arrLength),
          oldArray = copyArray(array);

      while (length--) {
        var index = indexes[length];
        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
      }
      return array;
    }

    /**
     * Gets the value at `key`, unless `key` is "__proto__" or "constructor".
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the property to get.
     * @returns {*} Returns the property value.
     */
    function safeGet(object, key) {
      if (key === 'constructor' && typeof object[key] === 'function') {
        return;
      }

      if (key == '__proto__') {
        return;
      }

      return object[key];
    }

    /**
     * Sets metadata for `func`.
     *
     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
     * period of time, it will trip its breaker and transition to an identity
     * function to avoid garbage collection pauses in V8. See
     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
     * for more details.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var setData = shortOut(baseSetData);

    /**
     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    var setTimeout = ctxSetTimeout || function(func, wait) {
      return root.setTimeout(func, wait);
    };

    /**
     * Sets the `toString` method of `func` to return `string`.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var setToString = shortOut(baseSetToString);

    /**
     * Sets the `toString` method of `wrapper` to mimic the source of `reference`
     * with wrapper details in a comment at the top of the source body.
     *
     * @private
     * @param {Function} wrapper The function to modify.
     * @param {Function} reference The reference function.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Function} Returns `wrapper`.
     */
    function setWrapToString(wrapper, reference, bitmask) {
      var source = (reference + '');
      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
    }

    /**
     * Creates a function that'll short out and invoke `identity` instead
     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
     * milliseconds.
     *
     * @private
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new shortable function.
     */
    function shortOut(func) {
      var count = 0,
          lastCalled = 0;

      return function() {
        var stamp = nativeNow(),
            remaining = HOT_SPAN - (stamp - lastCalled);

        lastCalled = stamp;
        if (remaining > 0) {
          if (++count >= HOT_COUNT) {
            return arguments[0];
          }
        } else {
          count = 0;
        }
        return func.apply(undefined, arguments);
      };
    }

    /**
     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @param {number} [size=array.length] The size of `array`.
     * @returns {Array} Returns `array`.
     */
    function shuffleSelf(array, size) {
      var index = -1,
          length = array.length,
          lastIndex = length - 1;

      size = size === undefined ? length : size;
      while (++index < size) {
        var rand = baseRandom(index, lastIndex),
            value = array[rand];

        array[rand] = array[index];
        array[index] = value;
      }
      array.length = size;
      return array;
    }

    /**
     * Converts `string` to a property path array.
     *
     * @private
     * @param {string} string The string to convert.
     * @returns {Array} Returns the property path array.
     */
    var stringToPath = memoizeCapped(function(string) {
      var result = [];
      if (string.charCodeAt(0) === 46 /* . */) {
        result.push('');
      }
      string.replace(rePropName, function(match, number, quote, subString) {
        result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));
      });
      return result;
    });

    /**
     * Converts `value` to a string key if it's not a string or symbol.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {string|symbol} Returns the key.
     */
    function toKey(value) {
      if (typeof value == 'string' || isSymbol(value)) {
        return value;
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * Converts `func` to its source code.
     *
     * @private
     * @param {Function} func The function to convert.
     * @returns {string} Returns the source code.
     */
    function toSource(func) {
      if (func != null) {
        try {
          return funcToString.call(func);
        } catch (e) {}
        try {
          return (func + '');
        } catch (e) {}
      }
      return '';
    }

    /**
     * Updates wrapper `details` based on `bitmask` flags.
     *
     * @private
     * @returns {Array} details The details to modify.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Array} Returns `details`.
     */
    function updateWrapDetails(details, bitmask) {
      arrayEach(wrapFlags, function(pair) {
        var value = '_.' + pair[0];
        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
          details.push(value);
        }
      });
      return details.sort();
    }

    /**
     * Creates a clone of `wrapper`.
     *
     * @private
     * @param {Object} wrapper The wrapper to clone.
     * @returns {Object} Returns the cloned wrapper.
     */
    function wrapperClone(wrapper) {
      if (wrapper instanceof LazyWrapper) {
        return wrapper.clone();
      }
      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
      result.__actions__ = copyArray(wrapper.__actions__);
      result.__index__  = wrapper.__index__;
      result.__values__ = wrapper.__values__;
      return result;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements split into groups the length of `size`.
     * If `array` can't be split evenly, the final chunk will be the remaining
     * elements.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to process.
     * @param {number} [size=1] The length of each chunk
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the new array of chunks.
     * @example
     *
     * _.chunk(['a', 'b', 'c', 'd'], 2);
     * // => [['a', 'b'], ['c', 'd']]
     *
     * _.chunk(['a', 'b', 'c', 'd'], 3);
     * // => [['a', 'b', 'c'], ['d']]
     */
    function chunk(array, size, guard) {
      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
        size = 1;
      } else {
        size = nativeMax(toInteger(size), 0);
      }
      var length = array == null ? 0 : array.length;
      if (!length || size < 1) {
        return [];
      }
      var index = 0,
          resIndex = 0,
          result = Array(nativeCeil(length / size));

      while (index < length) {
        result[resIndex++] = baseSlice(array, index, (index += size));
      }
      return result;
    }

    /**
     * Creates an array with all falsey values removed. The values `false`, `null`,
     * `0`, `""`, `undefined`, and `NaN` are falsey.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to compact.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.compact([0, 1, false, 2, '', 3]);
     * // => [1, 2, 3]
     */
    function compact(array) {
      var index = -1,
          length = array == null ? 0 : array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (value) {
          result[resIndex++] = value;
        }
      }
      return result;
    }

    /**
     * Creates a new array concatenating `array` with any additional arrays
     * and/or values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to concatenate.
     * @param {...*} [values] The values to concatenate.
     * @returns {Array} Returns the new concatenated array.
     * @example
     *
     * var array = [1];
     * var other = _.concat(array, 2, [3], [[4]]);
     *
     * console.log(other);
     * // => [1, 2, 3, [4]]
     *
     * console.log(array);
     * // => [1]
     */
    function concat() {
      var length = arguments.length;
      if (!length) {
        return [];
      }
      var args = Array(length - 1),
          array = arguments[0],
          index = length;

      while (index--) {
        args[index - 1] = arguments[index];
      }
      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
    }

    /**
     * Creates an array of `array` values not included in the other given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * **Note:** Unlike `_.pullAll`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.without, _.xor
     * @example
     *
     * _.difference([2, 1], [2, 3]);
     * // => [1]
     */
    var difference = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `iteratee` which
     * is invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var differenceBy = baseRest(function(array, values) {
      var iteratee = last(values);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `comparator`
     * which is invoked to compare elements of `array` to `values`. The order and
     * references of result values are determined by the first array. The comparator
     * is invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     *
     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }]
     */
    var differenceWith = baseRest(function(array, values) {
      var comparator = last(values);
      if (isArrayLikeObject(comparator)) {
        comparator = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
        : [];
    });

    /**
     * Creates a slice of `array` with `n` elements dropped from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.drop([1, 2, 3]);
     * // => [2, 3]
     *
     * _.drop([1, 2, 3], 2);
     * // => [3]
     *
     * _.drop([1, 2, 3], 5);
     * // => []
     *
     * _.drop([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function drop(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with `n` elements dropped from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRight([1, 2, 3]);
     * // => [1, 2]
     *
     * _.dropRight([1, 2, 3], 2);
     * // => [1]
     *
     * _.dropRight([1, 2, 3], 5);
     * // => []
     *
     * _.dropRight([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function dropRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the end.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.dropRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropRightWhile(users, ['active', false]);
     * // => objects for ['barney']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropRightWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true, true)
        : [];
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the beginning.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.dropWhile(users, function(o) { return !o.active; });
     * // => objects for ['pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropWhile(users, ['active', false]);
     * // => objects for ['pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true)
        : [];
    }

    /**
     * Fills elements of `array` with `value` from `start` up to, but not
     * including, `end`.
     *
     * **Note:** This method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Array
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.fill(array, 'a');
     * console.log(array);
     * // => ['a', 'a', 'a']
     *
     * _.fill(Array(3), 2);
     * // => [2, 2, 2]
     *
     * _.fill([4, 6, 8, 10], '*', 1, 3);
     * // => [4, '*', '*', 10]
     */
    function fill(array, value, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
        start = 0;
        end = length;
      }
      return baseFill(array, value, start, end);
    }

    /**
     * This method is like `_.find` except that it returns the index of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.findIndex(users, function(o) { return o.user == 'barney'; });
     * // => 0
     *
     * // The `_.matches` iteratee shorthand.
     * _.findIndex(users, { 'user': 'fred', 'active': false });
     * // => 1
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findIndex(users, ['active', false]);
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.findIndex(users, 'active');
     * // => 2
     */
    function findIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index);
    }

    /**
     * This method is like `_.findIndex` except that it iterates over elements
     * of `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
     * // => 2
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
     * // => 0
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastIndex(users, ['active', false]);
     * // => 2
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastIndex(users, 'active');
     * // => 0
     */
    function findLastIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length - 1;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = fromIndex < 0
          ? nativeMax(length + index, 0)
          : nativeMin(index, length - 1);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index, true);
    }

    /**
     * Flattens `array` a single level deep.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flatten([1, [2, [3, [4]], 5]]);
     * // => [1, 2, [3, [4]], 5]
     */
    function flatten(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, 1) : [];
    }

    /**
     * Recursively flattens `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flattenDeep([1, [2, [3, [4]], 5]]);
     * // => [1, 2, 3, 4, 5]
     */
    function flattenDeep(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, INFINITY) : [];
    }

    /**
     * Recursively flatten `array` up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * var array = [1, [2, [3, [4]], 5]];
     *
     * _.flattenDepth(array, 1);
     * // => [1, 2, [3, [4]], 5]
     *
     * _.flattenDepth(array, 2);
     * // => [1, 2, 3, [4], 5]
     */
    function flattenDepth(array, depth) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(array, depth);
    }

    /**
     * The inverse of `_.toPairs`; this method returns an object composed
     * from key-value `pairs`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} pairs The key-value pairs.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.fromPairs([['a', 1], ['b', 2]]);
     * // => { 'a': 1, 'b': 2 }
     */
    function fromPairs(pairs) {
      var index = -1,
          length = pairs == null ? 0 : pairs.length,
          result = {};

      while (++index < length) {
        var pair = pairs[index];
        result[pair[0]] = pair[1];
      }
      return result;
    }

    /**
     * Gets the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias first
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the first element of `array`.
     * @example
     *
     * _.head([1, 2, 3]);
     * // => 1
     *
     * _.head([]);
     * // => undefined
     */
    function head(array) {
      return (array && array.length) ? array[0] : undefined;
    }

    /**
     * Gets the index at which the first occurrence of `value` is found in `array`
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it's used as the
     * offset from the end of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.indexOf([1, 2, 1, 2], 2);
     * // => 1
     *
     * // Search from the `fromIndex`.
     * _.indexOf([1, 2, 1, 2], 2, 2);
     * // => 3
     */
    function indexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseIndexOf(array, value, index);
    }

    /**
     * Gets all but the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.initial([1, 2, 3]);
     * // => [1, 2]
     */
    function initial(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 0, -1) : [];
    }

    /**
     * Creates an array of unique values that are included in all given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersection([2, 1], [2, 3]);
     * // => [2]
     */
    var intersection = baseRest(function(arrays) {
      var mapped = arrayMap(arrays, castArrayLikeObject);
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped)
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `iteratee`
     * which is invoked for each element of each `arrays` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [2.1]
     *
     * // The `_.property` iteratee shorthand.
     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }]
     */
    var intersectionBy = baseRest(function(arrays) {
      var iteratee = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      if (iteratee === last(mapped)) {
        iteratee = undefined;
      } else {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `comparator`
     * which is invoked to compare elements of `arrays`. The order and references
     * of result values are determined by the first array. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.intersectionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }]
     */
    var intersectionWith = baseRest(function(arrays) {
      var comparator = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      comparator = typeof comparator == 'function' ? comparator : undefined;
      if (comparator) {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, undefined, comparator)
        : [];
    });

    /**
     * Converts all elements in `array` into a string separated by `separator`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to convert.
     * @param {string} [separator=','] The element separator.
     * @returns {string} Returns the joined string.
     * @example
     *
     * _.join(['a', 'b', 'c'], '~');
     * // => 'a~b~c'
     */
    function join(array, separator) {
      return array == null ? '' : nativeJoin.call(array, separator);
    }

    /**
     * Gets the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the last element of `array`.
     * @example
     *
     * _.last([1, 2, 3]);
     * // => 3
     */
    function last(array) {
      var length = array == null ? 0 : array.length;
      return length ? array[length - 1] : undefined;
    }

    /**
     * This method is like `_.indexOf` except that it iterates over elements of
     * `array` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.lastIndexOf([1, 2, 1, 2], 2);
     * // => 3
     *
     * // Search from the `fromIndex`.
     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
     * // => 1
     */
    function lastIndexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
      }
      return value === value
        ? strictLastIndexOf(array, value, index)
        : baseFindIndex(array, baseIsNaN, index, true);
    }

    /**
     * Gets the element at index `n` of `array`. If `n` is negative, the nth
     * element from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.11.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=0] The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     *
     * _.nth(array, 1);
     * // => 'b'
     *
     * _.nth(array, -2);
     * // => 'c';
     */
    function nth(array, n) {
      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
    }

    /**
     * Removes all given values from `array` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
     * to remove elements from an array by predicate.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...*} [values] The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pull(array, 'a', 'c');
     * console.log(array);
     * // => ['b', 'b']
     */
    var pull = baseRest(pullAll);

    /**
     * This method is like `_.pull` except that it accepts an array of values to remove.
     *
     * **Note:** Unlike `_.difference`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pullAll(array, ['a', 'c']);
     * console.log(array);
     * // => ['b', 'b']
     */
    function pullAll(array, values) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values)
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `iteratee` which is
     * invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The iteratee is invoked with one argument: (value).
     *
     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
     *
     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
     * console.log(array);
     * // => [{ 'x': 2 }]
     */
    function pullAllBy(array, values, iteratee) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, getIteratee(iteratee, 2))
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `comparator` which
     * is invoked to compare elements of `array` to `values`. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
     *
     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
     * console.log(array);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
     */
    function pullAllWith(array, values, comparator) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, undefined, comparator)
        : array;
    }

    /**
     * Removes elements from `array` corresponding to `indexes` and returns an
     * array of removed elements.
     *
     * **Note:** Unlike `_.at`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...(number|number[])} [indexes] The indexes of elements to remove.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     * var pulled = _.pullAt(array, [1, 3]);
     *
     * console.log(array);
     * // => ['a', 'c']
     *
     * console.log(pulled);
     * // => ['b', 'd']
     */
    var pullAt = flatRest(function(array, indexes) {
      var length = array == null ? 0 : array.length,
          result = baseAt(array, indexes);

      basePullAt(array, arrayMap(indexes, function(index) {
        return isIndex(index, length) ? +index : index;
      }).sort(compareAscending));

      return result;
    });

    /**
     * Removes all elements from `array` that `predicate` returns truthy for
     * and returns an array of the removed elements. The predicate is invoked
     * with three arguments: (value, index, array).
     *
     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
     * to pull elements from an array by value.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [1, 2, 3, 4];
     * var evens = _.remove(array, function(n) {
     *   return n % 2 == 0;
     * });
     *
     * console.log(array);
     * // => [1, 3]
     *
     * console.log(evens);
     * // => [2, 4]
     */
    function remove(array, predicate) {
      var result = [];
      if (!(array && array.length)) {
        return result;
      }
      var index = -1,
          indexes = [],
          length = array.length;

      predicate = getIteratee(predicate, 3);
      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result.push(value);
          indexes.push(index);
        }
      }
      basePullAt(array, indexes);
      return result;
    }

    /**
     * Reverses `array` so that the first element becomes the last, the second
     * element becomes the second to last, and so on.
     *
     * **Note:** This method mutates `array` and is based on
     * [`Array#reverse`](https://mdn.io/Array/reverse).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.reverse(array);
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function reverse(array) {
      return array == null ? array : nativeReverse.call(array);
    }

    /**
     * Creates a slice of `array` from `start` up to, but not including, `end`.
     *
     * **Note:** This method is used instead of
     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
     * returned.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function slice(array, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
        start = 0;
        end = length;
      }
      else {
        start = start == null ? 0 : toInteger(start);
        end = end === undefined ? length : toInteger(end);
      }
      return baseSlice(array, start, end);
    }

    /**
     * Uses a binary search to determine the lowest index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedIndex([30, 50], 40);
     * // => 1
     */
    function sortedIndex(array, value) {
      return baseSortedIndex(array, value);
    }

    /**
     * This method is like `_.sortedIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
     * // => 0
     */
    function sortedIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
    }

    /**
     * This method is like `_.indexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
     * // => 1
     */
    function sortedIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value);
        if (index < length && eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.sortedIndex` except that it returns the highest
     * index at which `value` should be inserted into `array` in order to
     * maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
     * // => 4
     */
    function sortedLastIndex(array, value) {
      return baseSortedIndex(array, value, true);
    }

    /**
     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 1
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
     * // => 1
     */
    function sortedLastIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
    }

    /**
     * This method is like `_.lastIndexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
     * // => 3
     */
    function sortedLastIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value, true) - 1;
        if (eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.uniq` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniq([1, 1, 2]);
     * // => [1, 2]
     */
    function sortedUniq(array) {
      return (array && array.length)
        ? baseSortedUniq(array)
        : [];
    }

    /**
     * This method is like `_.uniqBy` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
     * // => [1.1, 2.3]
     */
    function sortedUniqBy(array, iteratee) {
      return (array && array.length)
        ? baseSortedUniq(array, getIteratee(iteratee, 2))
        : [];
    }

    /**
     * Gets all but the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.tail([1, 2, 3]);
     * // => [2, 3]
     */
    function tail(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 1, length) : [];
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.take([1, 2, 3]);
     * // => [1]
     *
     * _.take([1, 2, 3], 2);
     * // => [1, 2]
     *
     * _.take([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.take([1, 2, 3], 0);
     * // => []
     */
    function take(array, n, guard) {
      if (!(array && array.length)) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRight([1, 2, 3]);
     * // => [3]
     *
     * _.takeRight([1, 2, 3], 2);
     * // => [2, 3]
     *
     * _.takeRight([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.takeRight([1, 2, 3], 0);
     * // => []
     */
    function takeRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with elements taken from the end. Elements are
     * taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.takeRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeRightWhile(users, ['active', false]);
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeRightWhile(users, 'active');
     * // => []
     */
    function takeRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), false, true)
        : [];
    }

    /**
     * Creates a slice of `array` with elements taken from the beginning. Elements
     * are taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.takeWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeWhile(users, ['active', false]);
     * // => objects for ['barney', 'fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeWhile(users, 'active');
     * // => []
     */
    function takeWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3))
        : [];
    }

    /**
     * Creates an array of unique values, in order, from all given arrays using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.union([2], [1, 2]);
     * // => [2, 1]
     */
    var union = baseRest(function(arrays) {
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
    });

    /**
     * This method is like `_.union` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which uniqueness is computed. Result values are chosen from the first
     * array in which the value occurs. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.unionBy([2.1], [1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    var unionBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.union` except that it accepts `comparator` which
     * is invoked to compare elements of `arrays`. Result values are chosen from
     * the first array in which the value occurs. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.unionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var unionWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
    });

    /**
     * Creates a duplicate-free version of an array, using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons, in which only the first occurrence of each element
     * is kept. The order of result values is determined by the order they occur
     * in the array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniq([2, 1, 2]);
     * // => [2, 1]
     */
    function uniq(array) {
      return (array && array.length) ? baseUniq(array) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * uniqueness is computed. The order of result values is determined by the
     * order they occur in the array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    function uniqBy(array, iteratee) {
      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `comparator` which
     * is invoked to compare elements of `array`. The order of result values is
     * determined by the order they occur in the array.The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.uniqWith(objects, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
     */
    function uniqWith(array, comparator) {
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
    }

    /**
     * This method is like `_.zip` except that it accepts an array of grouped
     * elements and creates an array regrouping the elements to their pre-zip
     * configuration.
     *
     * @static
     * @memberOf _
     * @since 1.2.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     *
     * _.unzip(zipped);
     * // => [['a', 'b'], [1, 2], [true, false]]
     */
    function unzip(array) {
      if (!(array && array.length)) {
        return [];
      }
      var length = 0;
      array = arrayFilter(array, function(group) {
        if (isArrayLikeObject(group)) {
          length = nativeMax(group.length, length);
          return true;
        }
      });
      return baseTimes(length, function(index) {
        return arrayMap(array, baseProperty(index));
      });
    }

    /**
     * This method is like `_.unzip` except that it accepts `iteratee` to specify
     * how regrouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  regrouped values.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
     * // => [[1, 10, 100], [2, 20, 200]]
     *
     * _.unzipWith(zipped, _.add);
     * // => [3, 30, 300]
     */
    function unzipWith(array, iteratee) {
      if (!(array && array.length)) {
        return [];
      }
      var result = unzip(array);
      if (iteratee == null) {
        return result;
      }
      return arrayMap(result, function(group) {
        return apply(iteratee, undefined, group);
      });
    }

    /**
     * Creates an array excluding all given values using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.pull`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...*} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.xor
     * @example
     *
     * _.without([2, 1, 2, 3], 1, 2);
     * // => [3]
     */
    var without = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, values)
        : [];
    });

    /**
     * Creates an array of unique values that is the
     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
     * of the given arrays. The order of result values is determined by the order
     * they occur in the arrays.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.without
     * @example
     *
     * _.xor([2, 1], [2, 3]);
     * // => [1, 3]
     */
    var xor = baseRest(function(arrays) {
      return baseXor(arrayFilter(arrays, isArrayLikeObject));
    });

    /**
     * This method is like `_.xor` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which by which they're compared. The order of result values is determined
     * by the order they occur in the arrays. The iteratee is invoked with one
     * argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2, 3.4]
     *
     * // The `_.property` iteratee shorthand.
     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var xorBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.xor` except that it accepts `comparator` which is
     * invoked to compare elements of `arrays`. The order of result values is
     * determined by the order they occur in the arrays. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.xorWith(objects, others, _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var xorWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
    });

    /**
     * Creates an array of grouped elements, the first of which contains the
     * first elements of the given arrays, the second of which contains the
     * second elements of the given arrays, and so on.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     */
    var zip = baseRest(unzip);

    /**
     * This method is like `_.fromPairs` except that it accepts two arrays,
     * one of property identifiers and one of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 0.4.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObject(['a', 'b'], [1, 2]);
     * // => { 'a': 1, 'b': 2 }
     */
    function zipObject(props, values) {
      return baseZipObject(props || [], values || [], assignValue);
    }

    /**
     * This method is like `_.zipObject` except that it supports property paths.
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
     */
    function zipObjectDeep(props, values) {
      return baseZipObject(props || [], values || [], baseSet);
    }

    /**
     * This method is like `_.zip` except that it accepts `iteratee` to specify
     * how grouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  grouped values.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
     *   return a + b + c;
     * });
     * // => [111, 222]
     */
    var zipWith = baseRest(function(arrays) {
      var length = arrays.length,
          iteratee = length > 1 ? arrays[length - 1] : undefined;

      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
      return unzipWith(arrays, iteratee);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` wrapper instance that wraps `value` with explicit method
     * chain sequences enabled. The result of such sequences must be unwrapped
     * with `_#value`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Seq
     * @param {*} value The value to wrap.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36 },
     *   { 'user': 'fred',    'age': 40 },
     *   { 'user': 'pebbles', 'age': 1 }
     * ];
     *
     * var youngest = _
     *   .chain(users)
     *   .sortBy('age')
     *   .map(function(o) {
     *     return o.user + ' is ' + o.age;
     *   })
     *   .head()
     *   .value();
     * // => 'pebbles is 1'
     */
    function chain(value) {
      var result = lodash(value);
      result.__chain__ = true;
      return result;
    }

    /**
     * This method invokes `interceptor` and returns `value`. The interceptor
     * is invoked with one argument; (value). The purpose of this method is to
     * "tap into" a method chain sequence in order to modify intermediate results.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns `value`.
     * @example
     *
     * _([1, 2, 3])
     *  .tap(function(array) {
     *    // Mutate input array.
     *    array.pop();
     *  })
     *  .reverse()
     *  .value();
     * // => [2, 1]
     */
    function tap(value, interceptor) {
      interceptor(value);
      return value;
    }

    /**
     * This method is like `_.tap` except that it returns the result of `interceptor`.
     * The purpose of this method is to "pass thru" values replacing intermediate
     * results in a method chain sequence.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns the result of `interceptor`.
     * @example
     *
     * _('  abc  ')
     *  .chain()
     *  .trim()
     *  .thru(function(value) {
     *    return [value];
     *  })
     *  .value();
     * // => ['abc']
     */
    function thru(value, interceptor) {
      return interceptor(value);
    }

    /**
     * This method is the wrapper version of `_.at`.
     *
     * @name at
     * @memberOf _
     * @since 1.0.0
     * @category Seq
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _(object).at(['a[0].b.c', 'a[1]']).value();
     * // => [3, 4]
     */
    var wrapperAt = flatRest(function(paths) {
      var length = paths.length,
          start = length ? paths[0] : 0,
          value = this.__wrapped__,
          interceptor = function(object) { return baseAt(object, paths); };

      if (length > 1 || this.__actions__.length ||
          !(value instanceof LazyWrapper) || !isIndex(start)) {
        return this.thru(interceptor);
      }
      value = value.slice(start, +start + (length ? 1 : 0));
      value.__actions__.push({
        'func': thru,
        'args': [interceptor],
        'thisArg': undefined
      });
      return new LodashWrapper(value, this.__chain__).thru(function(array) {
        if (length && !array.length) {
          array.push(undefined);
        }
        return array;
      });
    });

    /**
     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
     *
     * @name chain
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // A sequence without explicit chaining.
     * _(users).head();
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // A sequence with explicit chaining.
     * _(users)
     *   .chain()
     *   .head()
     *   .pick('user')
     *   .value();
     * // => { 'user': 'barney' }
     */
    function wrapperChain() {
      return chain(this);
    }

    /**
     * Executes the chain sequence and returns the wrapped result.
     *
     * @name commit
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).push(3);
     *
     * console.log(array);
     * // => [1, 2]
     *
     * wrapped = wrapped.commit();
     * console.log(array);
     * // => [1, 2, 3]
     *
     * wrapped.last();
     * // => 3
     *
     * console.log(array);
     * // => [1, 2, 3]
     */
    function wrapperCommit() {
      return new LodashWrapper(this.value(), this.__chain__);
    }

    /**
     * Gets the next value on a wrapped object following the
     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
     *
     * @name next
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the next iterator value.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 1 }
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 2 }
     *
     * wrapped.next();
     * // => { 'done': true, 'value': undefined }
     */
    function wrapperNext() {
      if (this.__values__ === undefined) {
        this.__values__ = toArray(this.value());
      }
      var done = this.__index__ >= this.__values__.length,
          value = done ? undefined : this.__values__[this.__index__++];

      return { 'done': done, 'value': value };
    }

    /**
     * Enables the wrapper to be iterable.
     *
     * @name Symbol.iterator
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the wrapper object.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped[Symbol.iterator]() === wrapped;
     * // => true
     *
     * Array.from(wrapped);
     * // => [1, 2]
     */
    function wrapperToIterator() {
      return this;
    }

    /**
     * Creates a clone of the chain sequence planting `value` as the wrapped value.
     *
     * @name plant
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @param {*} value The value to plant.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2]).map(square);
     * var other = wrapped.plant([3, 4]);
     *
     * other.value();
     * // => [9, 16]
     *
     * wrapped.value();
     * // => [1, 4]
     */
    function wrapperPlant(value) {
      var result,
          parent = this;

      while (parent instanceof baseLodash) {
        var clone = wrapperClone(parent);
        clone.__index__ = 0;
        clone.__values__ = undefined;
        if (result) {
          previous.__wrapped__ = clone;
        } else {
          result = clone;
        }
        var previous = clone;
        parent = parent.__wrapped__;
      }
      previous.__wrapped__ = value;
      return result;
    }

    /**
     * This method is the wrapper version of `_.reverse`.
     *
     * **Note:** This method mutates the wrapped array.
     *
     * @name reverse
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _(array).reverse().value()
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function wrapperReverse() {
      var value = this.__wrapped__;
      if (value instanceof LazyWrapper) {
        var wrapped = value;
        if (this.__actions__.length) {
          wrapped = new LazyWrapper(this);
        }
        wrapped = wrapped.reverse();
        wrapped.__actions__.push({
          'func': thru,
          'args': [reverse],
          'thisArg': undefined
        });
        return new LodashWrapper(wrapped, this.__chain__);
      }
      return this.thru(reverse);
    }

    /**
     * Executes the chain sequence to resolve the unwrapped value.
     *
     * @name value
     * @memberOf _
     * @since 0.1.0
     * @alias toJSON, valueOf
     * @category Seq
     * @returns {*} Returns the resolved unwrapped value.
     * @example
     *
     * _([1, 2, 3]).value();
     * // => [1, 2, 3]
     */
    function wrapperValue() {
      return baseWrapperValue(this.__wrapped__, this.__actions__);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the number of times the key was returned by `iteratee`. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.countBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': 1, '6': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.countBy(['one', 'two', 'three'], 'length');
     * // => { '3': 2, '5': 1 }
     */
    var countBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        ++result[key];
      } else {
        baseAssignValue(result, key, 1);
      }
    });

    /**
     * Checks if `predicate` returns truthy for **all** elements of `collection`.
     * Iteration is stopped once `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * **Note:** This method returns `true` for
     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
     * elements of empty collections.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     * @example
     *
     * _.every([true, 1, null, 'yes'], Boolean);
     * // => false
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.every(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.every(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.every(users, 'active');
     * // => false
     */
    function every(collection, predicate, guard) {
      var func = isArray(collection) ? arrayEvery : baseEvery;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning an array of all elements
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * **Note:** Unlike `_.remove`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.reject
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.filter(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, { 'age': 36, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.filter(users, 'active');
     * // => objects for ['barney']
     *
     * // Combining several predicates using `_.overEvery` or `_.overSome`.
     * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));
     * // => objects for ['fred', 'barney']
     */
    function filter(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning the first element
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': true },
     *   { 'user': 'fred',    'age': 40, 'active': false },
     *   { 'user': 'pebbles', 'age': 1,  'active': true }
     * ];
     *
     * _.find(users, function(o) { return o.age < 40; });
     * // => object for 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.find(users, { 'age': 1, 'active': true });
     * // => object for 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.find(users, ['active', false]);
     * // => object for 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.find(users, 'active');
     * // => object for 'barney'
     */
    var find = createFind(findIndex);

    /**
     * This method is like `_.find` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=collection.length-1] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * _.findLast([1, 2, 3, 4], function(n) {
     *   return n % 2 == 1;
     * });
     * // => 3
     */
    var findLast = createFind(findLastIndex);

    /**
     * Creates a flattened array of values by running each element in `collection`
     * thru `iteratee` and flattening the mapped results. The iteratee is invoked
     * with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [n, n];
     * }
     *
     * _.flatMap([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMap(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), 1);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDeep([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMapDeep(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), INFINITY);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDepth([1, 2], duplicate, 2);
     * // => [[1, 1], [2, 2]]
     */
    function flatMapDepth(collection, iteratee, depth) {
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(map(collection, iteratee), depth);
    }

    /**
     * Iterates over elements of `collection` and invokes `iteratee` for each element.
     * The iteratee is invoked with three arguments: (value, index|key, collection).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * **Note:** As with other "Collections" methods, objects with a "length"
     * property are iterated like arrays. To avoid this behavior use `_.forIn`
     * or `_.forOwn` for object iteration.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias each
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEachRight
     * @example
     *
     * _.forEach([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `1` then `2`.
     *
     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forEach(collection, iteratee) {
      var func = isArray(collection) ? arrayEach : baseEach;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forEach` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @alias eachRight
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEach
     * @example
     *
     * _.forEachRight([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `2` then `1`.
     */
    function forEachRight(collection, iteratee) {
      var func = isArray(collection) ? arrayEachRight : baseEachRight;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The order of grouped values
     * is determined by the order they occur in `collection`. The corresponding
     * value of each key is an array of elements responsible for generating the
     * key. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.groupBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': [4.2], '6': [6.1, 6.3] }
     *
     * // The `_.property` iteratee shorthand.
     * _.groupBy(['one', 'two', 'three'], 'length');
     * // => { '3': ['one', 'two'], '5': ['three'] }
     */
    var groupBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        result[key].push(value);
      } else {
        baseAssignValue(result, key, [value]);
      }
    });

    /**
     * Checks if `value` is in `collection`. If `collection` is a string, it's
     * checked for a substring of `value`, otherwise
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * is used for equality comparisons. If `fromIndex` is negative, it's used as
     * the offset from the end of `collection`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {boolean} Returns `true` if `value` is found, else `false`.
     * @example
     *
     * _.includes([1, 2, 3], 1);
     * // => true
     *
     * _.includes([1, 2, 3], 1, 2);
     * // => false
     *
     * _.includes({ 'a': 1, 'b': 2 }, 1);
     * // => true
     *
     * _.includes('abcd', 'bc');
     * // => true
     */
    function includes(collection, value, fromIndex, guard) {
      collection = isArrayLike(collection) ? collection : values(collection);
      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;

      var length = collection.length;
      if (fromIndex < 0) {
        fromIndex = nativeMax(length + fromIndex, 0);
      }
      return isString(collection)
        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
    }

    /**
     * Invokes the method at `path` of each element in `collection`, returning
     * an array of the results of each invoked method. Any additional arguments
     * are provided to each invoked method. If `path` is a function, it's invoked
     * for, and `this` bound to, each element in `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array|Function|string} path The path of the method to invoke or
     *  the function invoked per iteration.
     * @param {...*} [args] The arguments to invoke each method with.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
     * // => [[1, 5, 7], [1, 2, 3]]
     *
     * _.invokeMap([123, 456], String.prototype.split, '');
     * // => [['1', '2', '3'], ['4', '5', '6']]
     */
    var invokeMap = baseRest(function(collection, path, args) {
      var index = -1,
          isFunc = typeof path == 'function',
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value) {
        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
      });
      return result;
    });

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the last element responsible for generating the key. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * var array = [
     *   { 'dir': 'left', 'code': 97 },
     *   { 'dir': 'right', 'code': 100 }
     * ];
     *
     * _.keyBy(array, function(o) {
     *   return String.fromCharCode(o.code);
     * });
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     *
     * _.keyBy(array, 'dir');
     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
     */
    var keyBy = createAggregator(function(result, value, key) {
      baseAssignValue(result, key, value);
    });

    /**
     * Creates an array of values by running each element in `collection` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
     *
     * The guarded methods are:
     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * _.map([4, 8], square);
     * // => [16, 64]
     *
     * _.map({ 'a': 4, 'b': 8 }, square);
     * // => [16, 64] (iteration order is not guaranteed)
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, 'user');
     * // => ['barney', 'fred']
     */
    function map(collection, iteratee) {
      var func = isArray(collection) ? arrayMap : baseMap;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.sortBy` except that it allows specifying the sort
     * orders of the iteratees to sort by. If `orders` is unspecified, all values
     * are sorted in ascending order. Otherwise, specify an order of "desc" for
     * descending or "asc" for ascending sort order of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @param {string[]} [orders] The sort orders of `iteratees`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 34 },
     *   { 'user': 'fred',   'age': 40 },
     *   { 'user': 'barney', 'age': 36 }
     * ];
     *
     * // Sort by `user` in ascending order and by `age` in descending order.
     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
     */
    function orderBy(collection, iteratees, orders, guard) {
      if (collection == null) {
        return [];
      }
      if (!isArray(iteratees)) {
        iteratees = iteratees == null ? [] : [iteratees];
      }
      orders = guard ? undefined : orders;
      if (!isArray(orders)) {
        orders = orders == null ? [] : [orders];
      }
      return baseOrderBy(collection, iteratees, orders);
    }

    /**
     * Creates an array of elements split into two groups, the first of which
     * contains elements `predicate` returns truthy for, the second of which
     * contains elements `predicate` returns falsey for. The predicate is
     * invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of grouped elements.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': false },
     *   { 'user': 'fred',    'age': 40, 'active': true },
     *   { 'user': 'pebbles', 'age': 1,  'active': false }
     * ];
     *
     * _.partition(users, function(o) { return o.active; });
     * // => objects for [['fred'], ['barney', 'pebbles']]
     *
     * // The `_.matches` iteratee shorthand.
     * _.partition(users, { 'age': 1, 'active': false });
     * // => objects for [['pebbles'], ['barney', 'fred']]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.partition(users, ['active', false]);
     * // => objects for [['barney', 'pebbles'], ['fred']]
     *
     * // The `_.property` iteratee shorthand.
     * _.partition(users, 'active');
     * // => objects for [['fred'], ['barney', 'pebbles']]
     */
    var partition = createAggregator(function(result, value, key) {
      result[key ? 0 : 1].push(value);
    }, function() { return [[], []]; });

    /**
     * Reduces `collection` to a value which is the accumulated result of running
     * each element in `collection` thru `iteratee`, where each successive
     * invocation is supplied the return value of the previous. If `accumulator`
     * is not given, the first element of `collection` is used as the initial
     * value. The iteratee is invoked with four arguments:
     * (accumulator, value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.reduce`, `_.reduceRight`, and `_.transform`.
     *
     * The guarded methods are:
     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
     * and `sortBy`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduceRight
     * @example
     *
     * _.reduce([1, 2], function(sum, n) {
     *   return sum + n;
     * }, 0);
     * // => 3
     *
     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     *   return result;
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
     */
    function reduce(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduce : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
    }

    /**
     * This method is like `_.reduce` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduce
     * @example
     *
     * var array = [[0, 1], [2, 3], [4, 5]];
     *
     * _.reduceRight(array, function(flattened, other) {
     *   return flattened.concat(other);
     * }, []);
     * // => [4, 5, 2, 3, 0, 1]
     */
    function reduceRight(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduceRight : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
    }

    /**
     * The opposite of `_.filter`; this method returns the elements of `collection`
     * that `predicate` does **not** return truthy for.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.filter
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': true }
     * ];
     *
     * _.reject(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.reject(users, { 'age': 40, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.reject(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.reject(users, 'active');
     * // => objects for ['barney']
     */
    function reject(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, negate(getIteratee(predicate, 3)));
    }

    /**
     * Gets a random element from `collection`.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     * @example
     *
     * _.sample([1, 2, 3, 4]);
     * // => 2
     */
    function sample(collection) {
      var func = isArray(collection) ? arraySample : baseSample;
      return func(collection);
    }

    /**
     * Gets `n` random elements at unique keys from `collection` up to the
     * size of `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @param {number} [n=1] The number of elements to sample.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the random elements.
     * @example
     *
     * _.sampleSize([1, 2, 3], 2);
     * // => [3, 1]
     *
     * _.sampleSize([1, 2, 3], 4);
     * // => [2, 3, 1]
     */
    function sampleSize(collection, n, guard) {
      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      var func = isArray(collection) ? arraySampleSize : baseSampleSize;
      return func(collection, n);
    }

    /**
     * Creates an array of shuffled values, using a version of the
     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     * @example
     *
     * _.shuffle([1, 2, 3, 4]);
     * // => [4, 1, 3, 2]
     */
    function shuffle(collection) {
      var func = isArray(collection) ? arrayShuffle : baseShuffle;
      return func(collection);
    }

    /**
     * Gets the size of `collection` by returning its length for array-like
     * values or the number of own enumerable string keyed properties for objects.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @returns {number} Returns the collection size.
     * @example
     *
     * _.size([1, 2, 3]);
     * // => 3
     *
     * _.size({ 'a': 1, 'b': 2 });
     * // => 2
     *
     * _.size('pebbles');
     * // => 7
     */
    function size(collection) {
      if (collection == null) {
        return 0;
      }
      if (isArrayLike(collection)) {
        return isString(collection) ? stringSize(collection) : collection.length;
      }
      var tag = getTag(collection);
      if (tag == mapTag || tag == setTag) {
        return collection.size;
      }
      return baseKeys(collection).length;
    }

    /**
     * Checks if `predicate` returns truthy for **any** element of `collection`.
     * Iteration is stopped once `predicate` returns truthy. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     * @example
     *
     * _.some([null, 0, 'yes', false], Boolean);
     * // => true
     *
     * var users = [
     *   { 'user': 'barney', 'active': true },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.some(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.some(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.some(users, 'active');
     * // => true
     */
    function some(collection, predicate, guard) {
      var func = isArray(collection) ? arraySome : baseSome;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Creates an array of elements, sorted in ascending order by the results of
     * running each element in a collection thru each iteratee. This method
     * performs a stable sort, that is, it preserves the original sort order of
     * equal elements. The iteratees are invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 30 },
     *   { 'user': 'barney', 'age': 34 }
     * ];
     *
     * _.sortBy(users, [function(o) { return o.user; }]);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]
     *
     * _.sortBy(users, ['user', 'age']);
     * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]
     */
    var sortBy = baseRest(function(collection, iteratees) {
      if (collection == null) {
        return [];
      }
      var length = iteratees.length;
      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
        iteratees = [];
      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
        iteratees = [iteratees[0]];
      }
      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Gets the timestamp of the number of milliseconds that have elapsed since
     * the Unix epoch (1 January 1970 00:00:00 UTC).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Date
     * @returns {number} Returns the timestamp.
     * @example
     *
     * _.defer(function(stamp) {
     *   console.log(_.now() - stamp);
     * }, _.now());
     * // => Logs the number of milliseconds it took for the deferred invocation.
     */
    var now = ctxNow || function() {
      return root.Date.now();
    };

    /*------------------------------------------------------------------------*/

    /**
     * The opposite of `_.before`; this method creates a function that invokes
     * `func` once it's called `n` or more times.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {number} n The number of calls before `func` is invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var saves = ['profile', 'settings'];
     *
     * var done = _.after(saves.length, function() {
     *   console.log('done saving!');
     * });
     *
     * _.forEach(saves, function(type) {
     *   asyncSave({ 'type': type, 'complete': done });
     * });
     * // => Logs 'done saving!' after the two async saves have completed.
     */
    function after(n, func) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n < 1) {
          return func.apply(this, arguments);
        }
      };
    }

    /**
     * Creates a function that invokes `func`, with up to `n` arguments,
     * ignoring any additional arguments.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @param {number} [n=func.length] The arity cap.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
     * // => [6, 8, 10]
     */
    function ary(func, n, guard) {
      n = guard ? undefined : n;
      n = (func && n == null) ? func.length : n;
      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
    }

    /**
     * Creates a function that invokes `func`, with the `this` binding and arguments
     * of the created function, while it's called less than `n` times. Subsequent
     * calls to the created function return the result of the last `func` invocation.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {number} n The number of calls at which `func` is no longer invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * jQuery(element).on('click', _.before(5, addContactToList));
     * // => Allows adding up to 4 contacts to the list.
     */
    function before(n, func) {
      var result;
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n > 0) {
          result = func.apply(this, arguments);
        }
        if (n <= 1) {
          func = undefined;
        }
        return result;
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and `partials` prepended to the arguments it receives.
     *
     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for partially applied arguments.
     *
     * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
     * property of bound functions.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * function greet(greeting, punctuation) {
     *   return greeting + ' ' + this.user + punctuation;
     * }
     *
     * var object = { 'user': 'fred' };
     *
     * var bound = _.bind(greet, object, 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bind(greet, object, _, '!');
     * bound('hi');
     * // => 'hi fred!'
     */
    var bind = baseRest(function(func, thisArg, partials) {
      var bitmask = WRAP_BIND_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bind));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(func, bitmask, thisArg, partials, holders);
    });

    /**
     * Creates a function that invokes the method at `object[key]` with `partials`
     * prepended to the arguments it receives.
     *
     * This method differs from `_.bind` by allowing bound functions to reference
     * methods that may be redefined or don't yet exist. See
     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
     * for more details.
     *
     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Function
     * @param {Object} object The object to invoke the method on.
     * @param {string} key The key of the method.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var object = {
     *   'user': 'fred',
     *   'greet': function(greeting, punctuation) {
     *     return greeting + ' ' + this.user + punctuation;
     *   }
     * };
     *
     * var bound = _.bindKey(object, 'greet', 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * object.greet = function(greeting, punctuation) {
     *   return greeting + 'ya ' + this.user + punctuation;
     * };
     *
     * bound('!');
     * // => 'hiya fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bindKey(object, 'greet', _, '!');
     * bound('hi');
     * // => 'hiya fred!'
     */
    var bindKey = baseRest(function(object, key, partials) {
      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bindKey));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(key, bitmask, object, partials, holders);
    });

    /**
     * Creates a function that accepts arguments of `func` and either invokes
     * `func` returning its result, if at least `arity` number of arguments have
     * been provided, or returns a function that accepts the remaining `func`
     * arguments, and so on. The arity of `func` may be specified if `func.length`
     * is not sufficient.
     *
     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curry(abc);
     *
     * curried(1)(2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(1)(_, 3)(2);
     * // => [1, 2, 3]
     */
    function curry(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curry.placeholder;
      return result;
    }

    /**
     * This method is like `_.curry` except that arguments are applied to `func`
     * in the manner of `_.partialRight` instead of `_.partial`.
     *
     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curryRight(abc);
     *
     * curried(3)(2)(1);
     * // => [1, 2, 3]
     *
     * curried(2, 3)(1);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(3)(1, _)(2);
     * // => [1, 2, 3]
     */
    function curryRight(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curryRight.placeholder;
      return result;
    }

    /**
     * Creates a debounced function that delays invoking `func` until after `wait`
     * milliseconds have elapsed since the last time the debounced function was
     * invoked. The debounced function comes with a `cancel` method to cancel
     * delayed `func` invocations and a `flush` method to immediately invoke them.
     * Provide `options` to indicate whether `func` should be invoked on the
     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
     * with the last arguments provided to the debounced function. Subsequent
     * calls to the debounced function return the result of the last `func`
     * invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the debounced function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.debounce` and `_.throttle`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to debounce.
     * @param {number} [wait=0] The number of milliseconds to delay.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=false]
     *  Specify invoking on the leading edge of the timeout.
     * @param {number} [options.maxWait]
     *  The maximum time `func` is allowed to be delayed before it's invoked.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new debounced function.
     * @example
     *
     * // Avoid costly calculations while the window size is in flux.
     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
     *
     * // Invoke `sendMail` when clicked, debouncing subsequent calls.
     * jQuery(element).on('click', _.debounce(sendMail, 300, {
     *   'leading': true,
     *   'trailing': false
     * }));
     *
     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
     * var source = new EventSource('/stream');
     * jQuery(source).on('message', debounced);
     *
     * // Cancel the trailing debounced invocation.
     * jQuery(window).on('popstate', debounced.cancel);
     */
    function debounce(func, wait, options) {
      var lastArgs,
          lastThis,
          maxWait,
          result,
          timerId,
          lastCallTime,
          lastInvokeTime = 0,
          leading = false,
          maxing = false,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      wait = toNumber(wait) || 0;
      if (isObject(options)) {
        leading = !!options.leading;
        maxing = 'maxWait' in options;
        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }

      function invokeFunc(time) {
        var args = lastArgs,
            thisArg = lastThis;

        lastArgs = lastThis = undefined;
        lastInvokeTime = time;
        result = func.apply(thisArg, args);
        return result;
      }

      function leadingEdge(time) {
        // Reset any `maxWait` timer.
        lastInvokeTime = time;
        // Start the timer for the trailing edge.
        timerId = setTimeout(timerExpired, wait);
        // Invoke the leading edge.
        return leading ? invokeFunc(time) : result;
      }

      function remainingWait(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime,
            timeWaiting = wait - timeSinceLastCall;

        return maxing
          ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
          : timeWaiting;
      }

      function shouldInvoke(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime;

        // Either this is the first call, activity has stopped and we're at the
        // trailing edge, the system time has gone backwards and we're treating
        // it as the trailing edge, or we've hit the `maxWait` limit.
        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
      }

      function timerExpired() {
        var time = now();
        if (shouldInvoke(time)) {
          return trailingEdge(time);
        }
        // Restart the timer.
        timerId = setTimeout(timerExpired, remainingWait(time));
      }

      function trailingEdge(time) {
        timerId = undefined;

        // Only invoke if we have `lastArgs` which means `func` has been
        // debounced at least once.
        if (trailing && lastArgs) {
          return invokeFunc(time);
        }
        lastArgs = lastThis = undefined;
        return result;
      }

      function cancel() {
        if (timerId !== undefined) {
          clearTimeout(timerId);
        }
        lastInvokeTime = 0;
        lastArgs = lastCallTime = lastThis = timerId = undefined;
      }

      function flush() {
        return timerId === undefined ? result : trailingEdge(now());
      }

      function debounced() {
        var time = now(),
            isInvoking = shouldInvoke(time);

        lastArgs = arguments;
        lastThis = this;
        lastCallTime = time;

        if (isInvoking) {
          if (timerId === undefined) {
            return leadingEdge(lastCallTime);
          }
          if (maxing) {
            // Handle invocations in a tight loop.
            clearTimeout(timerId);
            timerId = setTimeout(timerExpired, wait);
            return invokeFunc(lastCallTime);
          }
        }
        if (timerId === undefined) {
          timerId = setTimeout(timerExpired, wait);
        }
        return result;
      }
      debounced.cancel = cancel;
      debounced.flush = flush;
      return debounced;
    }

    /**
     * Defers invoking the `func` until the current call stack has cleared. Any
     * additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to defer.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.defer(function(text) {
     *   console.log(text);
     * }, 'deferred');
     * // => Logs 'deferred' after one millisecond.
     */
    var defer = baseRest(function(func, args) {
      return baseDelay(func, 1, args);
    });

    /**
     * Invokes `func` after `wait` milliseconds. Any additional arguments are
     * provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.delay(function(text) {
     *   console.log(text);
     * }, 1000, 'later');
     * // => Logs 'later' after one second.
     */
    var delay = baseRest(function(func, wait, args) {
      return baseDelay(func, toNumber(wait) || 0, args);
    });

    /**
     * Creates a function that invokes `func` with arguments reversed.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to flip arguments for.
     * @returns {Function} Returns the new flipped function.
     * @example
     *
     * var flipped = _.flip(function() {
     *   return _.toArray(arguments);
     * });
     *
     * flipped('a', 'b', 'c', 'd');
     * // => ['d', 'c', 'b', 'a']
     */
    function flip(func) {
      return createWrap(func, WRAP_FLIP_FLAG);
    }

    /**
     * Creates a function that memoizes the result of `func`. If `resolver` is
     * provided, it determines the cache key for storing the result based on the
     * arguments provided to the memoized function. By default, the first argument
     * provided to the memoized function is used as the map cache key. The `func`
     * is invoked with the `this` binding of the memoized function.
     *
     * **Note:** The cache is exposed as the `cache` property on the memoized
     * function. Its creation may be customized by replacing the `_.memoize.Cache`
     * constructor with one whose instances implement the
     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
     * method interface of `clear`, `delete`, `get`, `has`, and `set`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to have its output memoized.
     * @param {Function} [resolver] The function to resolve the cache key.
     * @returns {Function} Returns the new memoized function.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     * var other = { 'c': 3, 'd': 4 };
     *
     * var values = _.memoize(_.values);
     * values(object);
     * // => [1, 2]
     *
     * values(other);
     * // => [3, 4]
     *
     * object.a = 2;
     * values(object);
     * // => [1, 2]
     *
     * // Modify the result cache.
     * values.cache.set(object, ['a', 'b']);
     * values(object);
     * // => ['a', 'b']
     *
     * // Replace `_.memoize.Cache`.
     * _.memoize.Cache = WeakMap;
     */
    function memoize(func, resolver) {
      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var memoized = function() {
        var args = arguments,
            key = resolver ? resolver.apply(this, args) : args[0],
            cache = memoized.cache;

        if (cache.has(key)) {
          return cache.get(key);
        }
        var result = func.apply(this, args);
        memoized.cache = cache.set(key, result) || cache;
        return result;
      };
      memoized.cache = new (memoize.Cache || MapCache);
      return memoized;
    }

    // Expose `MapCache`.
    memoize.Cache = MapCache;

    /**
     * Creates a function that negates the result of the predicate `func`. The
     * `func` predicate is invoked with the `this` binding and arguments of the
     * created function.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} predicate The predicate to negate.
     * @returns {Function} Returns the new negated function.
     * @example
     *
     * function isEven(n) {
     *   return n % 2 == 0;
     * }
     *
     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
     * // => [1, 3, 5]
     */
    function negate(predicate) {
      if (typeof predicate != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function() {
        var args = arguments;
        switch (args.length) {
          case 0: return !predicate.call(this);
          case 1: return !predicate.call(this, args[0]);
          case 2: return !predicate.call(this, args[0], args[1]);
          case 3: return !predicate.call(this, args[0], args[1], args[2]);
        }
        return !predicate.apply(this, args);
      };
    }

    /**
     * Creates a function that is restricted to invoking `func` once. Repeat calls
     * to the function return the value of the first invocation. The `func` is
     * invoked with the `this` binding and arguments of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var initialize = _.once(createApplication);
     * initialize();
     * initialize();
     * // => `createApplication` is invoked once
     */
    function once(func) {
      return before(2, func);
    }

    /**
     * Creates a function that invokes `func` with its arguments transformed.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Function
     * @param {Function} func The function to wrap.
     * @param {...(Function|Function[])} [transforms=[_.identity]]
     *  The argument transforms.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function doubled(n) {
     *   return n * 2;
     * }
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var func = _.overArgs(function(x, y) {
     *   return [x, y];
     * }, [square, doubled]);
     *
     * func(9, 3);
     * // => [81, 6]
     *
     * func(10, 5);
     * // => [100, 10]
     */
    var overArgs = castRest(function(func, transforms) {
      transforms = (transforms.length == 1 && isArray(transforms[0]))
        ? arrayMap(transforms[0], baseUnary(getIteratee()))
        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));

      var funcsLength = transforms.length;
      return baseRest(function(args) {
        var index = -1,
            length = nativeMin(args.length, funcsLength);

        while (++index < length) {
          args[index] = transforms[index].call(this, args[index]);
        }
        return apply(func, this, args);
      });
    });

    /**
     * Creates a function that invokes `func` with `partials` prepended to the
     * arguments it receives. This method is like `_.bind` except it does **not**
     * alter the `this` binding.
     *
     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 0.2.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var sayHelloTo = _.partial(greet, 'hello');
     * sayHelloTo('fred');
     * // => 'hello fred'
     *
     * // Partially applied with placeholders.
     * var greetFred = _.partial(greet, _, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     */
    var partial = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partial));
      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
    });

    /**
     * This method is like `_.partial` except that partially applied arguments
     * are appended to the arguments it receives.
     *
     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var greetFred = _.partialRight(greet, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     *
     * // Partially applied with placeholders.
     * var sayHelloTo = _.partialRight(greet, 'hello', _);
     * sayHelloTo('fred');
     * // => 'hello fred'
     */
    var partialRight = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partialRight));
      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
    });

    /**
     * Creates a function that invokes `func` with arguments arranged according
     * to the specified `indexes` where the argument value at the first index is
     * provided as the first argument, the argument value at the second index is
     * provided as the second argument, and so on.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to rearrange arguments for.
     * @param {...(number|number[])} indexes The arranged argument indexes.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var rearged = _.rearg(function(a, b, c) {
     *   return [a, b, c];
     * }, [2, 0, 1]);
     *
     * rearged('b', 'c', 'a')
     * // => ['a', 'b', 'c']
     */
    var rearg = flatRest(function(func, indexes) {
      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * created function and arguments from `start` and beyond provided as
     * an array.
     *
     * **Note:** This method is based on the
     * [rest parameter](https://mdn.io/rest_parameters).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.rest(function(what, names) {
     *   return what + ' ' + _.initial(names).join(', ') +
     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
     * });
     *
     * say('hello', 'fred', 'barney', 'pebbles');
     * // => 'hello fred, barney, & pebbles'
     */
    function rest(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start === undefined ? start : toInteger(start);
      return baseRest(func, start);
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * create function and an array of arguments much like
     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
     *
     * **Note:** This method is based on the
     * [spread operator](https://mdn.io/spread_operator).
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Function
     * @param {Function} func The function to spread arguments over.
     * @param {number} [start=0] The start position of the spread.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.spread(function(who, what) {
     *   return who + ' says ' + what;
     * });
     *
     * say(['fred', 'hello']);
     * // => 'fred says hello'
     *
     * var numbers = Promise.all([
     *   Promise.resolve(40),
     *   Promise.resolve(36)
     * ]);
     *
     * numbers.then(_.spread(function(x, y) {
     *   return x + y;
     * }));
     * // => a Promise of 76
     */
    function spread(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start == null ? 0 : nativeMax(toInteger(start), 0);
      return baseRest(function(args) {
        var array = args[start],
            otherArgs = castSlice(args, 0, start);

        if (array) {
          arrayPush(otherArgs, array);
        }
        return apply(func, this, otherArgs);
      });
    }

    /**
     * Creates a throttled function that only invokes `func` at most once per
     * every `wait` milliseconds. The throttled function comes with a `cancel`
     * method to cancel delayed `func` invocations and a `flush` method to
     * immediately invoke them. Provide `options` to indicate whether `func`
     * should be invoked on the leading and/or trailing edge of the `wait`
     * timeout. The `func` is invoked with the last arguments provided to the
     * throttled function. Subsequent calls to the throttled function return the
     * result of the last `func` invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the throttled function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.throttle` and `_.debounce`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to throttle.
     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=true]
     *  Specify invoking on the leading edge of the timeout.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new throttled function.
     * @example
     *
     * // Avoid excessively updating the position while scrolling.
     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
     *
     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
     * jQuery(element).on('click', throttled);
     *
     * // Cancel the trailing throttled invocation.
     * jQuery(window).on('popstate', throttled.cancel);
     */
    function throttle(func, wait, options) {
      var leading = true,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }
      return debounce(func, wait, {
        'leading': leading,
        'maxWait': wait,
        'trailing': trailing
      });
    }

    /**
     * Creates a function that accepts up to one argument, ignoring any
     * additional arguments.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.unary(parseInt));
     * // => [6, 8, 10]
     */
    function unary(func) {
      return ary(func, 1);
    }

    /**
     * Creates a function that provides `value` to `wrapper` as its first
     * argument. Any additional arguments provided to the function are appended
     * to those provided to the `wrapper`. The wrapper is invoked with the `this`
     * binding of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {*} value The value to wrap.
     * @param {Function} [wrapper=identity] The wrapper function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var p = _.wrap(_.escape, function(func, text) {
     *   return '<p>' + func(text) + '</p>';
     * });
     *
     * p('fred, barney, & pebbles');
     * // => '<p>fred, barney, &amp; pebbles</p>'
     */
    function wrap(value, wrapper) {
      return partial(castFunction(wrapper), value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Casts `value` as an array if it's not one.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Lang
     * @param {*} value The value to inspect.
     * @returns {Array} Returns the cast array.
     * @example
     *
     * _.castArray(1);
     * // => [1]
     *
     * _.castArray({ 'a': 1 });
     * // => [{ 'a': 1 }]
     *
     * _.castArray('abc');
     * // => ['abc']
     *
     * _.castArray(null);
     * // => [null]
     *
     * _.castArray(undefined);
     * // => [undefined]
     *
     * _.castArray();
     * // => []
     *
     * var array = [1, 2, 3];
     * console.log(_.castArray(array) === array);
     * // => true
     */
    function castArray() {
      if (!arguments.length) {
        return [];
      }
      var value = arguments[0];
      return isArray(value) ? value : [value];
    }

    /**
     * Creates a shallow clone of `value`.
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
     * and supports cloning arrays, array buffers, booleans, date objects, maps,
     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
     * arrays. The own enumerable properties of `arguments` objects are cloned
     * as plain objects. An empty object is returned for uncloneable values such
     * as error objects, functions, DOM nodes, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to clone.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeep
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var shallow = _.clone(objects);
     * console.log(shallow[0] === objects[0]);
     * // => true
     */
    function clone(value) {
      return baseClone(value, CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.clone` except that it accepts `customizer` which
     * is invoked to produce the cloned value. If `customizer` returns `undefined`,
     * cloning is handled by the method instead. The `customizer` is invoked with
     * up to four arguments; (value [, index|key, object, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeepWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(false);
     *   }
     * }
     *
     * var el = _.cloneWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 0
     */
    function cloneWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * This method is like `_.clone` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @returns {*} Returns the deep cloned value.
     * @see _.clone
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var deep = _.cloneDeep(objects);
     * console.log(deep[0] === objects[0]);
     * // => false
     */
    function cloneDeep(value) {
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.cloneWith` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the deep cloned value.
     * @see _.cloneWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(true);
     *   }
     * }
     *
     * var el = _.cloneDeepWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 20
     */
    function cloneDeepWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * Checks if `object` conforms to `source` by invoking the predicate
     * properties of `source` with the corresponding property values of `object`.
     *
     * **Note:** This method is equivalent to `_.conforms` when `source` is
     * partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
     * // => true
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
     * // => false
     */
    function conformsTo(object, source) {
      return source == null || baseConformsTo(object, source, keys(source));
    }

    /**
     * Performs a
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * comparison between two values to determine if they are equivalent.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.eq(object, object);
     * // => true
     *
     * _.eq(object, other);
     * // => false
     *
     * _.eq('a', 'a');
     * // => true
     *
     * _.eq('a', Object('a'));
     * // => false
     *
     * _.eq(NaN, NaN);
     * // => true
     */
    function eq(value, other) {
      return value === other || (value !== value && other !== other);
    }

    /**
     * Checks if `value` is greater than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     * @see _.lt
     * @example
     *
     * _.gt(3, 1);
     * // => true
     *
     * _.gt(3, 3);
     * // => false
     *
     * _.gt(1, 3);
     * // => false
     */
    var gt = createRelationalOperation(baseGt);

    /**
     * Checks if `value` is greater than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than or equal to
     *  `other`, else `false`.
     * @see _.lte
     * @example
     *
     * _.gte(3, 1);
     * // => true
     *
     * _.gte(3, 3);
     * // => true
     *
     * _.gte(1, 3);
     * // => false
     */
    var gte = createRelationalOperation(function(value, other) {
      return value >= other;
    });

    /**
     * Checks if `value` is likely an `arguments` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     *  else `false`.
     * @example
     *
     * _.isArguments(function() { return arguments; }());
     * // => true
     *
     * _.isArguments([1, 2, 3]);
     * // => false
     */
    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
        !propertyIsEnumerable.call(value, 'callee');
    };

    /**
     * Checks if `value` is classified as an `Array` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array, else `false`.
     * @example
     *
     * _.isArray([1, 2, 3]);
     * // => true
     *
     * _.isArray(document.body.children);
     * // => false
     *
     * _.isArray('abc');
     * // => false
     *
     * _.isArray(_.noop);
     * // => false
     */
    var isArray = Array.isArray;

    /**
     * Checks if `value` is classified as an `ArrayBuffer` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     * @example
     *
     * _.isArrayBuffer(new ArrayBuffer(2));
     * // => true
     *
     * _.isArrayBuffer(new Array(2));
     * // => false
     */
    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;

    /**
     * Checks if `value` is array-like. A value is considered array-like if it's
     * not a function and has a `value.length` that's an integer greater than or
     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
     * @example
     *
     * _.isArrayLike([1, 2, 3]);
     * // => true
     *
     * _.isArrayLike(document.body.children);
     * // => true
     *
     * _.isArrayLike('abc');
     * // => true
     *
     * _.isArrayLike(_.noop);
     * // => false
     */
    function isArrayLike(value) {
      return value != null && isLength(value.length) && !isFunction(value);
    }

    /**
     * This method is like `_.isArrayLike` except that it also checks if `value`
     * is an object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array-like object,
     *  else `false`.
     * @example
     *
     * _.isArrayLikeObject([1, 2, 3]);
     * // => true
     *
     * _.isArrayLikeObject(document.body.children);
     * // => true
     *
     * _.isArrayLikeObject('abc');
     * // => false
     *
     * _.isArrayLikeObject(_.noop);
     * // => false
     */
    function isArrayLikeObject(value) {
      return isObjectLike(value) && isArrayLike(value);
    }

    /**
     * Checks if `value` is classified as a boolean primitive or object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
     * @example
     *
     * _.isBoolean(false);
     * // => true
     *
     * _.isBoolean(null);
     * // => false
     */
    function isBoolean(value) {
      return value === true || value === false ||
        (isObjectLike(value) && baseGetTag(value) == boolTag);
    }

    /**
     * Checks if `value` is a buffer.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
     * @example
     *
     * _.isBuffer(new Buffer(2));
     * // => true
     *
     * _.isBuffer(new Uint8Array(2));
     * // => false
     */
    var isBuffer = nativeIsBuffer || stubFalse;

    /**
     * Checks if `value` is classified as a `Date` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     * @example
     *
     * _.isDate(new Date);
     * // => true
     *
     * _.isDate('Mon April 23 2012');
     * // => false
     */
    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;

    /**
     * Checks if `value` is likely a DOM element.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
     * @example
     *
     * _.isElement(document.body);
     * // => true
     *
     * _.isElement('<body>');
     * // => false
     */
    function isElement(value) {
      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
    }

    /**
     * Checks if `value` is an empty object, collection, map, or set.
     *
     * Objects are considered empty if they have no own enumerable string keyed
     * properties.
     *
     * Array-like values such as `arguments` objects, arrays, buffers, strings, or
     * jQuery-like collections are considered empty if they have a `length` of `0`.
     * Similarly, maps and sets are considered empty if they have a `size` of `0`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
     * @example
     *
     * _.isEmpty(null);
     * // => true
     *
     * _.isEmpty(true);
     * // => true
     *
     * _.isEmpty(1);
     * // => true
     *
     * _.isEmpty([1, 2, 3]);
     * // => false
     *
     * _.isEmpty({ 'a': 1 });
     * // => false
     */
    function isEmpty(value) {
      if (value == null) {
        return true;
      }
      if (isArrayLike(value) &&
          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
            isBuffer(value) || isTypedArray(value) || isArguments(value))) {
        return !value.length;
      }
      var tag = getTag(value);
      if (tag == mapTag || tag == setTag) {
        return !value.size;
      }
      if (isPrototype(value)) {
        return !baseKeys(value).length;
      }
      for (var key in value) {
        if (hasOwnProperty.call(value, key)) {
          return false;
        }
      }
      return true;
    }

    /**
     * Performs a deep comparison between two values to determine if they are
     * equivalent.
     *
     * **Note:** This method supports comparing arrays, array buffers, booleans,
     * date objects, error objects, maps, numbers, `Object` objects, regexes,
     * sets, strings, symbols, and typed arrays. `Object` objects are compared
     * by their own, not inherited, enumerable properties. Functions and DOM
     * nodes are compared by strict equality, i.e. `===`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.isEqual(object, other);
     * // => true
     *
     * object === other;
     * // => false
     */
    function isEqual(value, other) {
      return baseIsEqual(value, other);
    }

    /**
     * This method is like `_.isEqual` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with up to
     * six arguments: (objValue, othValue [, index|key, object, other, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, othValue) {
     *   if (isGreeting(objValue) && isGreeting(othValue)) {
     *     return true;
     *   }
     * }
     *
     * var array = ['hello', 'goodbye'];
     * var other = ['hi', 'goodbye'];
     *
     * _.isEqualWith(array, other, customizer);
     * // => true
     */
    function isEqualWith(value, other, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      var result = customizer ? customizer(value, other) : undefined;
      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
    }

    /**
     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
     * `SyntaxError`, `TypeError`, or `URIError` object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
     * @example
     *
     * _.isError(new Error);
     * // => true
     *
     * _.isError(Error);
     * // => false
     */
    function isError(value) {
      if (!isObjectLike(value)) {
        return false;
      }
      var tag = baseGetTag(value);
      return tag == errorTag || tag == domExcTag ||
        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
    }

    /**
     * Checks if `value` is a finite primitive number.
     *
     * **Note:** This method is based on
     * [`Number.isFinite`](https://mdn.io/Number/isFinite).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
     * @example
     *
     * _.isFinite(3);
     * // => true
     *
     * _.isFinite(Number.MIN_VALUE);
     * // => true
     *
     * _.isFinite(Infinity);
     * // => false
     *
     * _.isFinite('3');
     * // => false
     */
    function isFinite(value) {
      return typeof value == 'number' && nativeIsFinite(value);
    }

    /**
     * Checks if `value` is classified as a `Function` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a function, else `false`.
     * @example
     *
     * _.isFunction(_);
     * // => true
     *
     * _.isFunction(/abc/);
     * // => false
     */
    function isFunction(value) {
      if (!isObject(value)) {
        return false;
      }
      // The use of `Object#toString` avoids issues with the `typeof` operator
      // in Safari 9 which returns 'object' for typed arrays and other constructors.
      var tag = baseGetTag(value);
      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
    }

    /**
     * Checks if `value` is an integer.
     *
     * **Note:** This method is based on
     * [`Number.isInteger`](https://mdn.io/Number/isInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
     * @example
     *
     * _.isInteger(3);
     * // => true
     *
     * _.isInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isInteger(Infinity);
     * // => false
     *
     * _.isInteger('3');
     * // => false
     */
    function isInteger(value) {
      return typeof value == 'number' && value == toInteger(value);
    }

    /**
     * Checks if `value` is a valid array-like length.
     *
     * **Note:** This method is loosely based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
     * @example
     *
     * _.isLength(3);
     * // => true
     *
     * _.isLength(Number.MIN_VALUE);
     * // => false
     *
     * _.isLength(Infinity);
     * // => false
     *
     * _.isLength('3');
     * // => false
     */
    function isLength(value) {
      return typeof value == 'number' &&
        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is the
     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
     * @example
     *
     * _.isObject({});
     * // => true
     *
     * _.isObject([1, 2, 3]);
     * // => true
     *
     * _.isObject(_.noop);
     * // => true
     *
     * _.isObject(null);
     * // => false
     */
    function isObject(value) {
      var type = typeof value;
      return value != null && (type == 'object' || type == 'function');
    }

    /**
     * Checks if `value` is object-like. A value is object-like if it's not `null`
     * and has a `typeof` result of "object".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
     * @example
     *
     * _.isObjectLike({});
     * // => true
     *
     * _.isObjectLike([1, 2, 3]);
     * // => true
     *
     * _.isObjectLike(_.noop);
     * // => false
     *
     * _.isObjectLike(null);
     * // => false
     */
    function isObjectLike(value) {
      return value != null && typeof value == 'object';
    }

    /**
     * Checks if `value` is classified as a `Map` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     * @example
     *
     * _.isMap(new Map);
     * // => true
     *
     * _.isMap(new WeakMap);
     * // => false
     */
    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;

    /**
     * Performs a partial deep comparison between `object` and `source` to
     * determine if `object` contains equivalent property values.
     *
     * **Note:** This method is equivalent to `_.matches` when `source` is
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.isMatch(object, { 'b': 2 });
     * // => true
     *
     * _.isMatch(object, { 'b': 1 });
     * // => false
     */
    function isMatch(object, source) {
      return object === source || baseIsMatch(object, source, getMatchData(source));
    }

    /**
     * This method is like `_.isMatch` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with five
     * arguments: (objValue, srcValue, index|key, object, source).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, srcValue) {
     *   if (isGreeting(objValue) && isGreeting(srcValue)) {
     *     return true;
     *   }
     * }
     *
     * var object = { 'greeting': 'hello' };
     * var source = { 'greeting': 'hi' };
     *
     * _.isMatchWith(object, source, customizer);
     * // => true
     */
    function isMatchWith(object, source, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseIsMatch(object, source, getMatchData(source), customizer);
    }

    /**
     * Checks if `value` is `NaN`.
     *
     * **Note:** This method is based on
     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
     * `undefined` and other non-number values.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
     * @example
     *
     * _.isNaN(NaN);
     * // => true
     *
     * _.isNaN(new Number(NaN));
     * // => true
     *
     * isNaN(undefined);
     * // => true
     *
     * _.isNaN(undefined);
     * // => false
     */
    function isNaN(value) {
      // An `NaN` primitive is the only value that is not equal to itself.
      // Perform the `toStringTag` check first to avoid errors with some
      // ActiveX objects in IE.
      return isNumber(value) && value != +value;
    }

    /**
     * Checks if `value` is a pristine native function.
     *
     * **Note:** This method can't reliably detect native functions in the presence
     * of the core-js package because core-js circumvents this kind of detection.
     * Despite multiple requests, the core-js maintainer has made it clear: any
     * attempt to fix the detection will be obstructed. As a result, we're left
     * with little choice but to throw an error. Unfortunately, this also affects
     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
     * which rely on core-js.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     * @example
     *
     * _.isNative(Array.prototype.push);
     * // => true
     *
     * _.isNative(_);
     * // => false
     */
    function isNative(value) {
      if (isMaskable(value)) {
        throw new Error(CORE_ERROR_TEXT);
      }
      return baseIsNative(value);
    }

    /**
     * Checks if `value` is `null`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
     * @example
     *
     * _.isNull(null);
     * // => true
     *
     * _.isNull(void 0);
     * // => false
     */
    function isNull(value) {
      return value === null;
    }

    /**
     * Checks if `value` is `null` or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
     * @example
     *
     * _.isNil(null);
     * // => true
     *
     * _.isNil(void 0);
     * // => true
     *
     * _.isNil(NaN);
     * // => false
     */
    function isNil(value) {
      return value == null;
    }

    /**
     * Checks if `value` is classified as a `Number` primitive or object.
     *
     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
     * classified as numbers, use the `_.isFinite` method.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a number, else `false`.
     * @example
     *
     * _.isNumber(3);
     * // => true
     *
     * _.isNumber(Number.MIN_VALUE);
     * // => true
     *
     * _.isNumber(Infinity);
     * // => true
     *
     * _.isNumber('3');
     * // => false
     */
    function isNumber(value) {
      return typeof value == 'number' ||
        (isObjectLike(value) && baseGetTag(value) == numberTag);
    }

    /**
     * Checks if `value` is a plain object, that is, an object created by the
     * `Object` constructor or one with a `[[Prototype]]` of `null`.
     *
     * @static
     * @memberOf _
     * @since 0.8.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * _.isPlainObject(new Foo);
     * // => false
     *
     * _.isPlainObject([1, 2, 3]);
     * // => false
     *
     * _.isPlainObject({ 'x': 0, 'y': 0 });
     * // => true
     *
     * _.isPlainObject(Object.create(null));
     * // => true
     */
    function isPlainObject(value) {
      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
        return false;
      }
      var proto = getPrototype(value);
      if (proto === null) {
        return true;
      }
      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
      return typeof Ctor == 'function' && Ctor instanceof Ctor &&
        funcToString.call(Ctor) == objectCtorString;
    }

    /**
     * Checks if `value` is classified as a `RegExp` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     * @example
     *
     * _.isRegExp(/abc/);
     * // => true
     *
     * _.isRegExp('/abc/');
     * // => false
     */
    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;

    /**
     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
     * double precision number which isn't the result of a rounded unsafe integer.
     *
     * **Note:** This method is based on
     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
     * @example
     *
     * _.isSafeInteger(3);
     * // => true
     *
     * _.isSafeInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isSafeInteger(Infinity);
     * // => false
     *
     * _.isSafeInteger('3');
     * // => false
     */
    function isSafeInteger(value) {
      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is classified as a `Set` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     * @example
     *
     * _.isSet(new Set);
     * // => true
     *
     * _.isSet(new WeakSet);
     * // => false
     */
    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;

    /**
     * Checks if `value` is classified as a `String` primitive or object.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a string, else `false`.
     * @example
     *
     * _.isString('abc');
     * // => true
     *
     * _.isString(1);
     * // => false
     */
    function isString(value) {
      return typeof value == 'string' ||
        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
    }

    /**
     * Checks if `value` is classified as a `Symbol` primitive or object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
     * @example
     *
     * _.isSymbol(Symbol.iterator);
     * // => true
     *
     * _.isSymbol('abc');
     * // => false
     */
    function isSymbol(value) {
      return typeof value == 'symbol' ||
        (isObjectLike(value) && baseGetTag(value) == symbolTag);
    }

    /**
     * Checks if `value` is classified as a typed array.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     * @example
     *
     * _.isTypedArray(new Uint8Array);
     * // => true
     *
     * _.isTypedArray([]);
     * // => false
     */
    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;

    /**
     * Checks if `value` is `undefined`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
     * @example
     *
     * _.isUndefined(void 0);
     * // => true
     *
     * _.isUndefined(null);
     * // => false
     */
    function isUndefined(value) {
      return value === undefined;
    }

    /**
     * Checks if `value` is classified as a `WeakMap` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
     * @example
     *
     * _.isWeakMap(new WeakMap);
     * // => true
     *
     * _.isWeakMap(new Map);
     * // => false
     */
    function isWeakMap(value) {
      return isObjectLike(value) && getTag(value) == weakMapTag;
    }

    /**
     * Checks if `value` is classified as a `WeakSet` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
     * @example
     *
     * _.isWeakSet(new WeakSet);
     * // => true
     *
     * _.isWeakSet(new Set);
     * // => false
     */
    function isWeakSet(value) {
      return isObjectLike(value) && baseGetTag(value) == weakSetTag;
    }

    /**
     * Checks if `value` is less than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     * @see _.gt
     * @example
     *
     * _.lt(1, 3);
     * // => true
     *
     * _.lt(3, 3);
     * // => false
     *
     * _.lt(3, 1);
     * // => false
     */
    var lt = createRelationalOperation(baseLt);

    /**
     * Checks if `value` is less than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than or equal to
     *  `other`, else `false`.
     * @see _.gte
     * @example
     *
     * _.lte(1, 3);
     * // => true
     *
     * _.lte(3, 3);
     * // => true
     *
     * _.lte(3, 1);
     * // => false
     */
    var lte = createRelationalOperation(function(value, other) {
      return value <= other;
    });

    /**
     * Converts `value` to an array.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Array} Returns the converted array.
     * @example
     *
     * _.toArray({ 'a': 1, 'b': 2 });
     * // => [1, 2]
     *
     * _.toArray('abc');
     * // => ['a', 'b', 'c']
     *
     * _.toArray(1);
     * // => []
     *
     * _.toArray(null);
     * // => []
     */
    function toArray(value) {
      if (!value) {
        return [];
      }
      if (isArrayLike(value)) {
        return isString(value) ? stringToArray(value) : copyArray(value);
      }
      if (symIterator && value[symIterator]) {
        return iteratorToArray(value[symIterator]());
      }
      var tag = getTag(value),
          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);

      return func(value);
    }

    /**
     * Converts `value` to a finite number.
     *
     * @static
     * @memberOf _
     * @since 4.12.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted number.
     * @example
     *
     * _.toFinite(3.2);
     * // => 3.2
     *
     * _.toFinite(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toFinite(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toFinite('3.2');
     * // => 3.2
     */
    function toFinite(value) {
      if (!value) {
        return value === 0 ? value : 0;
      }
      value = toNumber(value);
      if (value === INFINITY || value === -INFINITY) {
        var sign = (value < 0 ? -1 : 1);
        return sign * MAX_INTEGER;
      }
      return value === value ? value : 0;
    }

    /**
     * Converts `value` to an integer.
     *
     * **Note:** This method is loosely based on
     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toInteger(3.2);
     * // => 3
     *
     * _.toInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toInteger(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toInteger('3.2');
     * // => 3
     */
    function toInteger(value) {
      var result = toFinite(value),
          remainder = result % 1;

      return result === result ? (remainder ? result - remainder : result) : 0;
    }

    /**
     * Converts `value` to an integer suitable for use as the length of an
     * array-like object.
     *
     * **Note:** This method is based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toLength(3.2);
     * // => 3
     *
     * _.toLength(Number.MIN_VALUE);
     * // => 0
     *
     * _.toLength(Infinity);
     * // => 4294967295
     *
     * _.toLength('3.2');
     * // => 3
     */
    function toLength(value) {
      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
    }

    /**
     * Converts `value` to a number.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     * @example
     *
     * _.toNumber(3.2);
     * // => 3.2
     *
     * _.toNumber(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toNumber(Infinity);
     * // => Infinity
     *
     * _.toNumber('3.2');
     * // => 3.2
     */
    function toNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      if (isObject(value)) {
        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
        value = isObject(other) ? (other + '') : other;
      }
      if (typeof value != 'string') {
        return value === 0 ? value : +value;
      }
      value = baseTrim(value);
      var isBinary = reIsBinary.test(value);
      return (isBinary || reIsOctal.test(value))
        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
        : (reIsBadHex.test(value) ? NAN : +value);
    }

    /**
     * Converts `value` to a plain object flattening inherited enumerable string
     * keyed properties of `value` to own properties of the plain object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Object} Returns the converted plain object.
     * @example
     *
     * function Foo() {
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.assign({ 'a': 1 }, new Foo);
     * // => { 'a': 1, 'b': 2 }
     *
     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
     * // => { 'a': 1, 'b': 2, 'c': 3 }
     */
    function toPlainObject(value) {
      return copyObject(value, keysIn(value));
    }

    /**
     * Converts `value` to a safe integer. A safe integer can be compared and
     * represented correctly.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toSafeInteger(3.2);
     * // => 3
     *
     * _.toSafeInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toSafeInteger(Infinity);
     * // => 9007199254740991
     *
     * _.toSafeInteger('3.2');
     * // => 3
     */
    function toSafeInteger(value) {
      return value
        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
        : (value === 0 ? value : 0);
    }

    /**
     * Converts `value` to a string. An empty string is returned for `null`
     * and `undefined` values. The sign of `-0` is preserved.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.toString(null);
     * // => ''
     *
     * _.toString(-0);
     * // => '-0'
     *
     * _.toString([1, 2, 3]);
     * // => '1,2,3'
     */
    function toString(value) {
      return value == null ? '' : baseToString(value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Assigns own enumerable string keyed properties of source objects to the
     * destination object. Source objects are applied from left to right.
     * Subsequent sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object` and is loosely based on
     * [`Object.assign`](https://mdn.io/Object/assign).
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assignIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assign({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'c': 3 }
     */
    var assign = createAssigner(function(object, source) {
      if (isPrototype(source) || isArrayLike(source)) {
        copyObject(source, keys(source), object);
        return;
      }
      for (var key in source) {
        if (hasOwnProperty.call(source, key)) {
          assignValue(object, key, source[key]);
        }
      }
    });

    /**
     * This method is like `_.assign` except that it iterates over own and
     * inherited source properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extend
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assign
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assignIn({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
     */
    var assignIn = createAssigner(function(object, source) {
      copyObject(source, keysIn(source), object);
    });

    /**
     * This method is like `_.assignIn` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extendWith
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignInWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keysIn(source), object, customizer);
    });

    /**
     * This method is like `_.assign` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignInWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keys(source), object, customizer);
    });

    /**
     * Creates an array of values corresponding to `paths` of `object`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Array} Returns the picked values.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _.at(object, ['a[0].b.c', 'a[1]']);
     * // => [3, 4]
     */
    var at = flatRest(baseAt);

    /**
     * Creates an object that inherits from the `prototype` object. If a
     * `properties` object is given, its own enumerable string keyed properties
     * are assigned to the created object.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Object
     * @param {Object} prototype The object to inherit from.
     * @param {Object} [properties] The properties to assign to the object.
     * @returns {Object} Returns the new object.
     * @example
     *
     * function Shape() {
     *   this.x = 0;
     *   this.y = 0;
     * }
     *
     * function Circle() {
     *   Shape.call(this);
     * }
     *
     * Circle.prototype = _.create(Shape.prototype, {
     *   'constructor': Circle
     * });
     *
     * var circle = new Circle;
     * circle instanceof Circle;
     * // => true
     *
     * circle instanceof Shape;
     * // => true
     */
    function create(prototype, properties) {
      var result = baseCreate(prototype);
      return properties == null ? result : baseAssign(result, properties);
    }

    /**
     * Assigns own and inherited enumerable string keyed properties of source
     * objects to the destination object for all destination properties that
     * resolve to `undefined`. Source objects are applied from left to right.
     * Once a property is set, additional values of the same property are ignored.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaultsDeep
     * @example
     *
     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var defaults = baseRest(function(object, sources) {
      object = Object(object);

      var index = -1;
      var length = sources.length;
      var guard = length > 2 ? sources[2] : undefined;

      if (guard && isIterateeCall(sources[0], sources[1], guard)) {
        length = 1;
      }

      while (++index < length) {
        var source = sources[index];
        var props = keysIn(source);
        var propsIndex = -1;
        var propsLength = props.length;

        while (++propsIndex < propsLength) {
          var key = props[propsIndex];
          var value = object[key];

          if (value === undefined ||
              (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {
            object[key] = source[key];
          }
        }
      }

      return object;
    });

    /**
     * This method is like `_.defaults` except that it recursively assigns
     * default properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaults
     * @example
     *
     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
     * // => { 'a': { 'b': 2, 'c': 3 } }
     */
    var defaultsDeep = baseRest(function(args) {
      args.push(undefined, customDefaultsMerge);
      return apply(mergeWith, undefined, args);
    });

    /**
     * This method is like `_.find` except that it returns the key of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findKey(users, function(o) { return o.age < 40; });
     * // => 'barney' (iteration order is not guaranteed)
     *
     * // The `_.matches` iteratee shorthand.
     * _.findKey(users, { 'age': 1, 'active': true });
     * // => 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findKey(users, 'active');
     * // => 'barney'
     */
    function findKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
    }

    /**
     * This method is like `_.findKey` except that it iterates over elements of
     * a collection in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findLastKey(users, function(o) { return o.age < 40; });
     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastKey(users, { 'age': 36, 'active': true });
     * // => 'barney'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastKey(users, 'active');
     * // => 'pebbles'
     */
    function findLastKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
    }

    /**
     * Iterates over own and inherited enumerable string keyed properties of an
     * object and invokes `iteratee` for each property. The iteratee is invoked
     * with three arguments: (value, key, object). Iteratee functions may exit
     * iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forInRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forIn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
     */
    function forIn(object, iteratee) {
      return object == null
        ? object
        : baseFor(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * This method is like `_.forIn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forInRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
     */
    function forInRight(object, iteratee) {
      return object == null
        ? object
        : baseForRight(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * Iterates over own enumerable string keyed properties of an object and
     * invokes `iteratee` for each property. The iteratee is invoked with three
     * arguments: (value, key, object). Iteratee functions may exit iteration
     * early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwnRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forOwn(object, iteratee) {
      return object && baseForOwn(object, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forOwn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwnRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
     */
    function forOwnRight(object, iteratee) {
      return object && baseForOwnRight(object, getIteratee(iteratee, 3));
    }

    /**
     * Creates an array of function property names from own enumerable properties
     * of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functionsIn
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functions(new Foo);
     * // => ['a', 'b']
     */
    function functions(object) {
      return object == null ? [] : baseFunctions(object, keys(object));
    }

    /**
     * Creates an array of function property names from own and inherited
     * enumerable properties of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functions
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functionsIn(new Foo);
     * // => ['a', 'b', 'c']
     */
    function functionsIn(object) {
      return object == null ? [] : baseFunctions(object, keysIn(object));
    }

    /**
     * Gets the value at `path` of `object`. If the resolved value is
     * `undefined`, the `defaultValue` is returned in its place.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.get(object, 'a[0].b.c');
     * // => 3
     *
     * _.get(object, ['a', '0', 'b', 'c']);
     * // => 3
     *
     * _.get(object, 'a.b.c', 'default');
     * // => 'default'
     */
    function get(object, path, defaultValue) {
      var result = object == null ? undefined : baseGet(object, path);
      return result === undefined ? defaultValue : result;
    }

    /**
     * Checks if `path` is a direct property of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = { 'a': { 'b': 2 } };
     * var other = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.has(object, 'a');
     * // => true
     *
     * _.has(object, 'a.b');
     * // => true
     *
     * _.has(object, ['a', 'b']);
     * // => true
     *
     * _.has(other, 'a');
     * // => false
     */
    function has(object, path) {
      return object != null && hasPath(object, path, baseHas);
    }

    /**
     * Checks if `path` is a direct or inherited property of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.hasIn(object, 'a');
     * // => true
     *
     * _.hasIn(object, 'a.b');
     * // => true
     *
     * _.hasIn(object, ['a', 'b']);
     * // => true
     *
     * _.hasIn(object, 'b');
     * // => false
     */
    function hasIn(object, path) {
      return object != null && hasPath(object, path, baseHasIn);
    }

    /**
     * Creates an object composed of the inverted keys and values of `object`.
     * If `object` contains duplicate values, subsequent values overwrite
     * property assignments of previous values.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Object
     * @param {Object} object The object to invert.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invert(object);
     * // => { '1': 'c', '2': 'b' }
     */
    var invert = createInverter(function(result, value, key) {
      if (value != null &&
          typeof value.toString != 'function') {
        value = nativeObjectToString.call(value);
      }

      result[value] = key;
    }, constant(identity));

    /**
     * This method is like `_.invert` except that the inverted object is generated
     * from the results of running each element of `object` thru `iteratee`. The
     * corresponding inverted value of each inverted key is an array of keys
     * responsible for generating the inverted value. The iteratee is invoked
     * with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Object
     * @param {Object} object The object to invert.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invertBy(object);
     * // => { '1': ['a', 'c'], '2': ['b'] }
     *
     * _.invertBy(object, function(value) {
     *   return 'group' + value;
     * });
     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
     */
    var invertBy = createInverter(function(result, value, key) {
      if (value != null &&
          typeof value.toString != 'function') {
        value = nativeObjectToString.call(value);
      }

      if (hasOwnProperty.call(result, value)) {
        result[value].push(key);
      } else {
        result[value] = [key];
      }
    }, getIteratee);

    /**
     * Invokes the method at `path` of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
     *
     * _.invoke(object, 'a[0].b.c.slice', 1, 3);
     * // => [2, 3]
     */
    var invoke = baseRest(baseInvoke);

    /**
     * Creates an array of the own enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects. See the
     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * for more details.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keys(new Foo);
     * // => ['a', 'b'] (iteration order is not guaranteed)
     *
     * _.keys('hi');
     * // => ['0', '1']
     */
    function keys(object) {
      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
    }

    /**
     * Creates an array of the own and inherited enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keysIn(new Foo);
     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
     */
    function keysIn(object) {
      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
    }

    /**
     * The opposite of `_.mapValues`; this method creates an object with the
     * same values as `object` and keys generated by running each own enumerable
     * string keyed property of `object` thru `iteratee`. The iteratee is invoked
     * with three arguments: (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapValues
     * @example
     *
     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
     *   return key + value;
     * });
     * // => { 'a1': 1, 'b2': 2 }
     */
    function mapKeys(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, iteratee(value, key, object), value);
      });
      return result;
    }

    /**
     * Creates an object with the same keys as `object` and values generated
     * by running each own enumerable string keyed property of `object` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapKeys
     * @example
     *
     * var users = {
     *   'fred':    { 'user': 'fred',    'age': 40 },
     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
     * };
     *
     * _.mapValues(users, function(o) { return o.age; });
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     *
     * // The `_.property` iteratee shorthand.
     * _.mapValues(users, 'age');
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     */
    function mapValues(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, key, iteratee(value, key, object));
      });
      return result;
    }

    /**
     * This method is like `_.assign` except that it recursively merges own and
     * inherited enumerable string keyed properties of source objects into the
     * destination object. Source properties that resolve to `undefined` are
     * skipped if a destination value exists. Array and plain object properties
     * are merged recursively. Other objects and value types are overridden by
     * assignment. Source objects are applied from left to right. Subsequent
     * sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {
     *   'a': [{ 'b': 2 }, { 'd': 4 }]
     * };
     *
     * var other = {
     *   'a': [{ 'c': 3 }, { 'e': 5 }]
     * };
     *
     * _.merge(object, other);
     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
     */
    var merge = createAssigner(function(object, source, srcIndex) {
      baseMerge(object, source, srcIndex);
    });

    /**
     * This method is like `_.merge` except that it accepts `customizer` which
     * is invoked to produce the merged values of the destination and source
     * properties. If `customizer` returns `undefined`, merging is handled by the
     * method instead. The `customizer` is invoked with six arguments:
     * (objValue, srcValue, key, object, source, stack).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   if (_.isArray(objValue)) {
     *     return objValue.concat(srcValue);
     *   }
     * }
     *
     * var object = { 'a': [1], 'b': [2] };
     * var other = { 'a': [3], 'b': [4] };
     *
     * _.mergeWith(object, other, customizer);
     * // => { 'a': [1, 3], 'b': [2, 4] }
     */
    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
      baseMerge(object, source, srcIndex, customizer);
    });

    /**
     * The opposite of `_.pick`; this method creates an object composed of the
     * own and inherited enumerable property paths of `object` that are not omitted.
     *
     * **Note:** This method is considerably slower than `_.pick`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to omit.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omit(object, ['a', 'c']);
     * // => { 'b': '2' }
     */
    var omit = flatRest(function(object, paths) {
      var result = {};
      if (object == null) {
        return result;
      }
      var isDeep = false;
      paths = arrayMap(paths, function(path) {
        path = castPath(path, object);
        isDeep || (isDeep = path.length > 1);
        return path;
      });
      copyObject(object, getAllKeysIn(object), result);
      if (isDeep) {
        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
      }
      var length = paths.length;
      while (length--) {
        baseUnset(result, paths[length]);
      }
      return result;
    });

    /**
     * The opposite of `_.pickBy`; this method creates an object composed of
     * the own and inherited enumerable string keyed properties of `object` that
     * `predicate` doesn't return truthy for. The predicate is invoked with two
     * arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omitBy(object, _.isNumber);
     * // => { 'b': '2' }
     */
    function omitBy(object, predicate) {
      return pickBy(object, negate(getIteratee(predicate)));
    }

    /**
     * Creates an object composed of the picked `object` properties.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pick(object, ['a', 'c']);
     * // => { 'a': 1, 'c': 3 }
     */
    var pick = flatRest(function(object, paths) {
      return object == null ? {} : basePick(object, paths);
    });

    /**
     * Creates an object composed of the `object` properties `predicate` returns
     * truthy for. The predicate is invoked with two arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pickBy(object, _.isNumber);
     * // => { 'a': 1, 'c': 3 }
     */
    function pickBy(object, predicate) {
      if (object == null) {
        return {};
      }
      var props = arrayMap(getAllKeysIn(object), function(prop) {
        return [prop];
      });
      predicate = getIteratee(predicate);
      return basePickBy(object, props, function(value, path) {
        return predicate(value, path[0]);
      });
    }

    /**
     * This method is like `_.get` except that if the resolved value is a
     * function it's invoked with the `this` binding of its parent object and
     * its result is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to resolve.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
     *
     * _.result(object, 'a[0].b.c1');
     * // => 3
     *
     * _.result(object, 'a[0].b.c2');
     * // => 4
     *
     * _.result(object, 'a[0].b.c3', 'default');
     * // => 'default'
     *
     * _.result(object, 'a[0].b.c3', _.constant('default'));
     * // => 'default'
     */
    function result(object, path, defaultValue) {
      path = castPath(path, object);

      var index = -1,
          length = path.length;

      // Ensure the loop is entered when path is empty.
      if (!length) {
        length = 1;
        object = undefined;
      }
      while (++index < length) {
        var value = object == null ? undefined : object[toKey(path[index])];
        if (value === undefined) {
          index = length;
          value = defaultValue;
        }
        object = isFunction(value) ? value.call(object) : value;
      }
      return object;
    }

    /**
     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
     * it's created. Arrays are created for missing index properties while objects
     * are created for all other missing properties. Use `_.setWith` to customize
     * `path` creation.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.set(object, 'a[0].b.c', 4);
     * console.log(object.a[0].b.c);
     * // => 4
     *
     * _.set(object, ['x', '0', 'y', 'z'], 5);
     * console.log(object.x[0].y.z);
     * // => 5
     */
    function set(object, path, value) {
      return object == null ? object : baseSet(object, path, value);
    }

    /**
     * This method is like `_.set` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.setWith(object, '[0][1]', 'a', Object);
     * // => { '0': { '1': 'a' } }
     */
    function setWith(object, path, value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseSet(object, path, value, customizer);
    }

    /**
     * Creates an array of own enumerable string keyed-value pairs for `object`
     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
     * entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entries
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairs(new Foo);
     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
     */
    var toPairs = createToPairs(keys);

    /**
     * Creates an array of own and inherited enumerable string keyed-value pairs
     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
     * or set, its entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entriesIn
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairsIn(new Foo);
     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
     */
    var toPairsIn = createToPairs(keysIn);

    /**
     * An alternative to `_.reduce`; this method transforms `object` to a new
     * `accumulator` object which is the result of running each of its own
     * enumerable string keyed properties thru `iteratee`, with each invocation
     * potentially mutating the `accumulator` object. If `accumulator` is not
     * provided, a new object with the same `[[Prototype]]` will be used. The
     * iteratee is invoked with four arguments: (accumulator, value, key, object).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The custom accumulator value.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.transform([2, 3, 4], function(result, n) {
     *   result.push(n *= n);
     *   return n % 2 == 0;
     * }, []);
     * // => [4, 9]
     *
     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] }
     */
    function transform(object, iteratee, accumulator) {
      var isArr = isArray(object),
          isArrLike = isArr || isBuffer(object) || isTypedArray(object);

      iteratee = getIteratee(iteratee, 4);
      if (accumulator == null) {
        var Ctor = object && object.constructor;
        if (isArrLike) {
          accumulator = isArr ? new Ctor : [];
        }
        else if (isObject(object)) {
          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
        }
        else {
          accumulator = {};
        }
      }
      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
        return iteratee(accumulator, value, index, object);
      });
      return accumulator;
    }

    /**
     * Removes the property at `path` of `object`.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 7 } }] };
     * _.unset(object, 'a[0].b.c');
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     *
     * _.unset(object, ['a', '0', 'b', 'c']);
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     */
    function unset(object, path) {
      return object == null ? true : baseUnset(object, path);
    }

    /**
     * This method is like `_.set` except that accepts `updater` to produce the
     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
     * is invoked with one argument: (value).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.update(object, 'a[0].b.c', function(n) { return n * n; });
     * console.log(object.a[0].b.c);
     * // => 9
     *
     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
     * console.log(object.x[0].y.z);
     * // => 0
     */
    function update(object, path, updater) {
      return object == null ? object : baseUpdate(object, path, castFunction(updater));
    }

    /**
     * This method is like `_.update` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.updateWith(object, '[0][1]', _.constant('a'), Object);
     * // => { '0': { '1': 'a' } }
     */
    function updateWith(object, path, updater, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
    }

    /**
     * Creates an array of the own enumerable string keyed property values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.values(new Foo);
     * // => [1, 2] (iteration order is not guaranteed)
     *
     * _.values('hi');
     * // => ['h', 'i']
     */
    function values(object) {
      return object == null ? [] : baseValues(object, keys(object));
    }

    /**
     * Creates an array of the own and inherited enumerable string keyed property
     * values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.valuesIn(new Foo);
     * // => [1, 2, 3] (iteration order is not guaranteed)
     */
    function valuesIn(object) {
      return object == null ? [] : baseValues(object, keysIn(object));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Clamps `number` within the inclusive `lower` and `upper` bounds.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Number
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     * @example
     *
     * _.clamp(-10, -5, 5);
     * // => -5
     *
     * _.clamp(10, -5, 5);
     * // => 5
     */
    function clamp(number, lower, upper) {
      if (upper === undefined) {
        upper = lower;
        lower = undefined;
      }
      if (upper !== undefined) {
        upper = toNumber(upper);
        upper = upper === upper ? upper : 0;
      }
      if (lower !== undefined) {
        lower = toNumber(lower);
        lower = lower === lower ? lower : 0;
      }
      return baseClamp(toNumber(number), lower, upper);
    }

    /**
     * Checks if `n` is between `start` and up to, but not including, `end`. If
     * `end` is not specified, it's set to `start` with `start` then set to `0`.
     * If `start` is greater than `end` the params are swapped to support
     * negative ranges.
     *
     * @static
     * @memberOf _
     * @since 3.3.0
     * @category Number
     * @param {number} number The number to check.
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     * @see _.range, _.rangeRight
     * @example
     *
     * _.inRange(3, 2, 4);
     * // => true
     *
     * _.inRange(4, 8);
     * // => true
     *
     * _.inRange(4, 2);
     * // => false
     *
     * _.inRange(2, 2);
     * // => false
     *
     * _.inRange(1.2, 2);
     * // => true
     *
     * _.inRange(5.2, 4);
     * // => false
     *
     * _.inRange(-3, -2, -6);
     * // => true
     */
    function inRange(number, start, end) {
      start = toFinite(start);
      if (end === undefined) {
        end = start;
        start = 0;
      } else {
        end = toFinite(end);
      }
      number = toNumber(number);
      return baseInRange(number, start, end);
    }

    /**
     * Produces a random number between the inclusive `lower` and `upper` bounds.
     * If only one argument is provided a number between `0` and the given number
     * is returned. If `floating` is `true`, or either `lower` or `upper` are
     * floats, a floating-point number is returned instead of an integer.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Number
     * @param {number} [lower=0] The lower bound.
     * @param {number} [upper=1] The upper bound.
     * @param {boolean} [floating] Specify returning a floating-point number.
     * @returns {number} Returns the random number.
     * @example
     *
     * _.random(0, 5);
     * // => an integer between 0 and 5
     *
     * _.random(5);
     * // => also an integer between 0 and 5
     *
     * _.random(5, true);
     * // => a floating-point number between 0 and 5
     *
     * _.random(1.2, 5.2);
     * // => a floating-point number between 1.2 and 5.2
     */
    function random(lower, upper, floating) {
      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
        upper = floating = undefined;
      }
      if (floating === undefined) {
        if (typeof upper == 'boolean') {
          floating = upper;
          upper = undefined;
        }
        else if (typeof lower == 'boolean') {
          floating = lower;
          lower = undefined;
        }
      }
      if (lower === undefined && upper === undefined) {
        lower = 0;
        upper = 1;
      }
      else {
        lower = toFinite(lower);
        if (upper === undefined) {
          upper = lower;
          lower = 0;
        } else {
          upper = toFinite(upper);
        }
      }
      if (lower > upper) {
        var temp = lower;
        lower = upper;
        upper = temp;
      }
      if (floating || lower % 1 || upper % 1) {
        var rand = nativeRandom();
        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
      }
      return baseRandom(lower, upper);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the camel cased string.
     * @example
     *
     * _.camelCase('Foo Bar');
     * // => 'fooBar'
     *
     * _.camelCase('--foo-bar--');
     * // => 'fooBar'
     *
     * _.camelCase('__FOO_BAR__');
     * // => 'fooBar'
     */
    var camelCase = createCompounder(function(result, word, index) {
      word = word.toLowerCase();
      return result + (index ? capitalize(word) : word);
    });

    /**
     * Converts the first character of `string` to upper case and the remaining
     * to lower case.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to capitalize.
     * @returns {string} Returns the capitalized string.
     * @example
     *
     * _.capitalize('FRED');
     * // => 'Fred'
     */
    function capitalize(string) {
      return upperFirst(toString(string).toLowerCase());
    }

    /**
     * Deburrs `string` by converting
     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
     * letters to basic Latin letters and removing
     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to deburr.
     * @returns {string} Returns the deburred string.
     * @example
     *
     * _.deburr('déjà vu');
     * // => 'deja vu'
     */
    function deburr(string) {
      string = toString(string);
      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
    }

    /**
     * Checks if `string` ends with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=string.length] The position to search up to.
     * @returns {boolean} Returns `true` if `string` ends with `target`,
     *  else `false`.
     * @example
     *
     * _.endsWith('abc', 'c');
     * // => true
     *
     * _.endsWith('abc', 'b');
     * // => false
     *
     * _.endsWith('abc', 'b', 2);
     * // => true
     */
    function endsWith(string, target, position) {
      string = toString(string);
      target = baseToString(target);

      var length = string.length;
      position = position === undefined
        ? length
        : baseClamp(toInteger(position), 0, length);

      var end = position;
      position -= target.length;
      return position >= 0 && string.slice(position, end) == target;
    }

    /**
     * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
     * corresponding HTML entities.
     *
     * **Note:** No other characters are escaped. To escape additional
     * characters use a third-party library like [_he_](https://mths.be/he).
     *
     * Though the ">" character is escaped for symmetry, characters like
     * ">" and "/" don't need escaping in HTML and have no special meaning
     * unless they're part of a tag or unquoted attribute value. See
     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
     * (under "semi-related fun fact") for more details.
     *
     * When working with HTML you should always
     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
     * XSS vectors.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escape('fred, barney, & pebbles');
     * // => 'fred, barney, &amp; pebbles'
     */
    function escape(string) {
      string = toString(string);
      return (string && reHasUnescapedHtml.test(string))
        ? string.replace(reUnescapedHtml, escapeHtmlChar)
        : string;
    }

    /**
     * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
     * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escapeRegExp('[lodash](https://lodash.com/)');
     * // => '\[lodash\]\(https://lodash\.com/\)'
     */
    function escapeRegExp(string) {
      string = toString(string);
      return (string && reHasRegExpChar.test(string))
        ? string.replace(reRegExpChar, '\\$&')
        : string;
    }

    /**
     * Converts `string` to
     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the kebab cased string.
     * @example
     *
     * _.kebabCase('Foo Bar');
     * // => 'foo-bar'
     *
     * _.kebabCase('fooBar');
     * // => 'foo-bar'
     *
     * _.kebabCase('__FOO_BAR__');
     * // => 'foo-bar'
     */
    var kebabCase = createCompounder(function(result, word, index) {
      return result + (index ? '-' : '') + word.toLowerCase();
    });

    /**
     * Converts `string`, as space separated words, to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.lowerCase('--Foo-Bar--');
     * // => 'foo bar'
     *
     * _.lowerCase('fooBar');
     * // => 'foo bar'
     *
     * _.lowerCase('__FOO_BAR__');
     * // => 'foo bar'
     */
    var lowerCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toLowerCase();
    });

    /**
     * Converts the first character of `string` to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.lowerFirst('Fred');
     * // => 'fred'
     *
     * _.lowerFirst('FRED');
     * // => 'fRED'
     */
    var lowerFirst = createCaseFirst('toLowerCase');

    /**
     * Pads `string` on the left and right sides if it's shorter than `length`.
     * Padding characters are truncated if they can't be evenly divided by `length`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.pad('abc', 8);
     * // => '  abc   '
     *
     * _.pad('abc', 8, '_-');
     * // => '_-abc_-_'
     *
     * _.pad('abc', 3);
     * // => 'abc'
     */
    function pad(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      if (!length || strLength >= length) {
        return string;
      }
      var mid = (length - strLength) / 2;
      return (
        createPadding(nativeFloor(mid), chars) +
        string +
        createPadding(nativeCeil(mid), chars)
      );
    }

    /**
     * Pads `string` on the right side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padEnd('abc', 6);
     * // => 'abc   '
     *
     * _.padEnd('abc', 6, '_-');
     * // => 'abc_-_'
     *
     * _.padEnd('abc', 3);
     * // => 'abc'
     */
    function padEnd(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (string + createPadding(length - strLength, chars))
        : string;
    }

    /**
     * Pads `string` on the left side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padStart('abc', 6);
     * // => '   abc'
     *
     * _.padStart('abc', 6, '_-');
     * // => '_-_abc'
     *
     * _.padStart('abc', 3);
     * // => 'abc'
     */
    function padStart(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (createPadding(length - strLength, chars) + string)
        : string;
    }

    /**
     * Converts `string` to an integer of the specified radix. If `radix` is
     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
     * hexadecimal, in which case a `radix` of `16` is used.
     *
     * **Note:** This method aligns with the
     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category String
     * @param {string} string The string to convert.
     * @param {number} [radix=10] The radix to interpret `value` by.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.parseInt('08');
     * // => 8
     *
     * _.map(['6', '08', '10'], _.parseInt);
     * // => [6, 8, 10]
     */
    function parseInt(string, radix, guard) {
      if (guard || radix == null) {
        radix = 0;
      } else if (radix) {
        radix = +radix;
      }
      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
    }

    /**
     * Repeats the given string `n` times.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to repeat.
     * @param {number} [n=1] The number of times to repeat the string.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the repeated string.
     * @example
     *
     * _.repeat('*', 3);
     * // => '***'
     *
     * _.repeat('abc', 2);
     * // => 'abcabc'
     *
     * _.repeat('abc', 0);
     * // => ''
     */
    function repeat(string, n, guard) {
      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      return baseRepeat(toString(string), n);
    }

    /**
     * Replaces matches for `pattern` in `string` with `replacement`.
     *
     * **Note:** This method is based on
     * [`String#replace`](https://mdn.io/String/replace).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to modify.
     * @param {RegExp|string} pattern The pattern to replace.
     * @param {Function|string} replacement The match replacement.
     * @returns {string} Returns the modified string.
     * @example
     *
     * _.replace('Hi Fred', 'Fred', 'Barney');
     * // => 'Hi Barney'
     */
    function replace() {
      var args = arguments,
          string = toString(args[0]);

      return args.length < 3 ? string : string.replace(args[1], args[2]);
    }

    /**
     * Converts `string` to
     * [snake case](https://en.wikipedia.org/wiki/Snake_case).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the snake cased string.
     * @example
     *
     * _.snakeCase('Foo Bar');
     * // => 'foo_bar'
     *
     * _.snakeCase('fooBar');
     * // => 'foo_bar'
     *
     * _.snakeCase('--FOO-BAR--');
     * // => 'foo_bar'
     */
    var snakeCase = createCompounder(function(result, word, index) {
      return result + (index ? '_' : '') + word.toLowerCase();
    });

    /**
     * Splits `string` by `separator`.
     *
     * **Note:** This method is based on
     * [`String#split`](https://mdn.io/String/split).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to split.
     * @param {RegExp|string} separator The separator pattern to split by.
     * @param {number} [limit] The length to truncate results to.
     * @returns {Array} Returns the string segments.
     * @example
     *
     * _.split('a-b-c', '-', 2);
     * // => ['a', 'b']
     */
    function split(string, separator, limit) {
      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
        separator = limit = undefined;
      }
      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
      if (!limit) {
        return [];
      }
      string = toString(string);
      if (string && (
            typeof separator == 'string' ||
            (separator != null && !isRegExp(separator))
          )) {
        separator = baseToString(separator);
        if (!separator && hasUnicode(string)) {
          return castSlice(stringToArray(string), 0, limit);
        }
      }
      return string.split(separator, limit);
    }

    /**
     * Converts `string` to
     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
     *
     * @static
     * @memberOf _
     * @since 3.1.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the start cased string.
     * @example
     *
     * _.startCase('--foo-bar--');
     * // => 'Foo Bar'
     *
     * _.startCase('fooBar');
     * // => 'Foo Bar'
     *
     * _.startCase('__FOO_BAR__');
     * // => 'FOO BAR'
     */
    var startCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + upperFirst(word);
    });

    /**
     * Checks if `string` starts with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=0] The position to search from.
     * @returns {boolean} Returns `true` if `string` starts with `target`,
     *  else `false`.
     * @example
     *
     * _.startsWith('abc', 'a');
     * // => true
     *
     * _.startsWith('abc', 'b');
     * // => false
     *
     * _.startsWith('abc', 'b', 1);
     * // => true
     */
    function startsWith(string, target, position) {
      string = toString(string);
      position = position == null
        ? 0
        : baseClamp(toInteger(position), 0, string.length);

      target = baseToString(target);
      return string.slice(position, position + target.length) == target;
    }

    /**
     * Creates a compiled template function that can interpolate data properties
     * in "interpolate" delimiters, HTML-escape interpolated data properties in
     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
     * properties may be accessed as free variables in the template. If a setting
     * object is given, it takes precedence over `_.templateSettings` values.
     *
     * **Note:** In the development build `_.template` utilizes
     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
     * for easier debugging.
     *
     * For more information on precompiling templates see
     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
     *
     * For more information on Chrome extension sandboxes see
     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The template string.
     * @param {Object} [options={}] The options object.
     * @param {RegExp} [options.escape=_.templateSettings.escape]
     *  The HTML "escape" delimiter.
     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
     *  The "evaluate" delimiter.
     * @param {Object} [options.imports=_.templateSettings.imports]
     *  An object to import into the template as free variables.
     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
     *  The "interpolate" delimiter.
     * @param {string} [options.sourceURL='lodash.templateSources[n]']
     *  The sourceURL of the compiled template.
     * @param {string} [options.variable='obj']
     *  The data object variable name.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the compiled template function.
     * @example
     *
     * // Use the "interpolate" delimiter to create a compiled template.
     * var compiled = _.template('hello <%= user %>!');
     * compiled({ 'user': 'fred' });
     * // => 'hello fred!'
     *
     * // Use the HTML "escape" delimiter to escape data property values.
     * var compiled = _.template('<b><%- value %></b>');
     * compiled({ 'value': '<script>' });
     * // => '<b>&lt;script&gt;</b>'
     *
     * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the internal `print` function in "evaluate" delimiters.
     * var compiled = _.template('<% print("hello " + user); %>!');
     * compiled({ 'user': 'barney' });
     * // => 'hello barney!'
     *
     * // Use the ES template literal delimiter as an "interpolate" delimiter.
     * // Disable support by replacing the "interpolate" delimiter.
     * var compiled = _.template('hello ${ user }!');
     * compiled({ 'user': 'pebbles' });
     * // => 'hello pebbles!'
     *
     * // Use backslashes to treat delimiters as plain text.
     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
     * compiled({ 'value': 'ignored' });
     * // => '<%- value %>'
     *
     * // Use the `imports` option to import `jQuery` as `jq`.
     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the `sourceURL` option to specify a custom sourceURL for the template.
     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
     * compiled(data);
     * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
     *
     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
     * compiled.source;
     * // => function(data) {
     * //   var __t, __p = '';
     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
     * //   return __p;
     * // }
     *
     * // Use custom template delimiters.
     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
     * var compiled = _.template('hello {{ user }}!');
     * compiled({ 'user': 'mustache' });
     * // => 'hello mustache!'
     *
     * // Use the `source` property to inline compiled templates for meaningful
     * // line numbers in error messages and stack traces.
     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
     *   var JST = {\
     *     "main": ' + _.template(mainText).source + '\
     *   };\
     * ');
     */
    function template(string, options, guard) {
      // Based on John Resig's `tmpl` implementation
      // (http://ejohn.org/blog/javascript-micro-templating/)
      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
      var settings = lodash.templateSettings;

      if (guard && isIterateeCall(string, options, guard)) {
        options = undefined;
      }
      string = toString(string);
      options = assignInWith({}, options, settings, customDefaultsAssignIn);

      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
          importsKeys = keys(imports),
          importsValues = baseValues(imports, importsKeys);

      var isEscaping,
          isEvaluating,
          index = 0,
          interpolate = options.interpolate || reNoMatch,
          source = "__p += '";

      // Compile the regexp to match each delimiter.
      var reDelimiters = RegExp(
        (options.escape || reNoMatch).source + '|' +
        interpolate.source + '|' +
        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
        (options.evaluate || reNoMatch).source + '|$'
      , 'g');

      // Use a sourceURL for easier debugging.
      // The sourceURL gets injected into the source that's eval-ed, so be careful
      // to normalize all kinds of whitespace, so e.g. newlines (and unicode versions of it) can't sneak in
      // and escape the comment, thus injecting code that gets evaled.
      var sourceURL = '//# sourceURL=' +
        (hasOwnProperty.call(options, 'sourceURL')
          ? (options.sourceURL + '').replace(/\s/g, ' ')
          : ('lodash.templateSources[' + (++templateCounter) + ']')
        ) + '\n';

      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
        interpolateValue || (interpolateValue = esTemplateValue);

        // Escape characters that can't be included in string literals.
        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);

        // Replace delimiters with snippets.
        if (escapeValue) {
          isEscaping = true;
          source += "' +\n__e(" + escapeValue + ") +\n'";
        }
        if (evaluateValue) {
          isEvaluating = true;
          source += "';\n" + evaluateValue + ";\n__p += '";
        }
        if (interpolateValue) {
          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
        }
        index = offset + match.length;

        // The JS engine embedded in Adobe products needs `match` returned in
        // order to produce the correct `offset` value.
        return match;
      });

      source += "';\n";

      // If `variable` is not specified wrap a with-statement around the generated
      // code to add the data object to the top of the scope chain.
      var variable = hasOwnProperty.call(options, 'variable') && options.variable;
      if (!variable) {
        source = 'with (obj) {\n' + source + '\n}\n';
      }
      // Throw an error if a forbidden character was found in `variable`, to prevent
      // potential command injection attacks.
      else if (reForbiddenIdentifierChars.test(variable)) {
        throw new Error(INVALID_TEMPL_VAR_ERROR_TEXT);
      }

      // Cleanup code by stripping empty strings.
      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
        .replace(reEmptyStringMiddle, '$1')
        .replace(reEmptyStringTrailing, '$1;');

      // Frame code as the function body.
      source = 'function(' + (variable || 'obj') + ') {\n' +
        (variable
          ? ''
          : 'obj || (obj = {});\n'
        ) +
        "var __t, __p = ''" +
        (isEscaping
           ? ', __e = _.escape'
           : ''
        ) +
        (isEvaluating
          ? ', __j = Array.prototype.join;\n' +
            "function print() { __p += __j.call(arguments, '') }\n"
          : ';\n'
        ) +
        source +
        'return __p\n}';

      var result = attempt(function() {
        return Function(importsKeys, sourceURL + 'return ' + source)
          .apply(undefined, importsValues);
      });

      // Provide the compiled function's source by its `toString` method or
      // the `source` property as a convenience for inlining compiled templates.
      result.source = source;
      if (isError(result)) {
        throw result;
      }
      return result;
    }

    /**
     * Converts `string`, as a whole, to lower case just like
     * [String#toLowerCase](https://mdn.io/toLowerCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.toLower('--Foo-Bar--');
     * // => '--foo-bar--'
     *
     * _.toLower('fooBar');
     * // => 'foobar'
     *
     * _.toLower('__FOO_BAR__');
     * // => '__foo_bar__'
     */
    function toLower(value) {
      return toString(value).toLowerCase();
    }

    /**
     * Converts `string`, as a whole, to upper case just like
     * [String#toUpperCase](https://mdn.io/toUpperCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.toUpper('--foo-bar--');
     * // => '--FOO-BAR--'
     *
     * _.toUpper('fooBar');
     * // => 'FOOBAR'
     *
     * _.toUpper('__foo_bar__');
     * // => '__FOO_BAR__'
     */
    function toUpper(value) {
      return toString(value).toUpperCase();
    }

    /**
     * Removes leading and trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trim('  abc  ');
     * // => 'abc'
     *
     * _.trim('-_-abc-_-', '_-');
     * // => 'abc'
     *
     * _.map(['  foo  ', '  bar  '], _.trim);
     * // => ['foo', 'bar']
     */
    function trim(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return baseTrim(string);
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          chrSymbols = stringToArray(chars),
          start = charsStartIndex(strSymbols, chrSymbols),
          end = charsEndIndex(strSymbols, chrSymbols) + 1;

      return castSlice(strSymbols, start, end).join('');
    }

    /**
     * Removes trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimEnd('  abc  ');
     * // => '  abc'
     *
     * _.trimEnd('-_-abc-_-', '_-');
     * // => '-_-abc'
     */
    function trimEnd(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.slice(0, trimmedEndIndex(string) + 1);
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;

      return castSlice(strSymbols, 0, end).join('');
    }

    /**
     * Removes leading whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimStart('  abc  ');
     * // => 'abc  '
     *
     * _.trimStart('-_-abc-_-', '_-');
     * // => 'abc-_-'
     */
    function trimStart(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrimStart, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          start = charsStartIndex(strSymbols, stringToArray(chars));

      return castSlice(strSymbols, start).join('');
    }

    /**
     * Truncates `string` if it's longer than the given maximum string length.
     * The last characters of the truncated string are replaced with the omission
     * string which defaults to "...".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to truncate.
     * @param {Object} [options={}] The options object.
     * @param {number} [options.length=30] The maximum string length.
     * @param {string} [options.omission='...'] The string to indicate text is omitted.
     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
     * @returns {string} Returns the truncated string.
     * @example
     *
     * _.truncate('hi-diddly-ho there, neighborino');
     * // => 'hi-diddly-ho there, neighbo...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': ' '
     * });
     * // => 'hi-diddly-ho there,...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': /,? +/
     * });
     * // => 'hi-diddly-ho there...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'omission': ' [...]'
     * });
     * // => 'hi-diddly-ho there, neig [...]'
     */
    function truncate(string, options) {
      var length = DEFAULT_TRUNC_LENGTH,
          omission = DEFAULT_TRUNC_OMISSION;

      if (isObject(options)) {
        var separator = 'separator' in options ? options.separator : separator;
        length = 'length' in options ? toInteger(options.length) : length;
        omission = 'omission' in options ? baseToString(options.omission) : omission;
      }
      string = toString(string);

      var strLength = string.length;
      if (hasUnicode(string)) {
        var strSymbols = stringToArray(string);
        strLength = strSymbols.length;
      }
      if (length >= strLength) {
        return string;
      }
      var end = length - stringSize(omission);
      if (end < 1) {
        return omission;
      }
      var result = strSymbols
        ? castSlice(strSymbols, 0, end).join('')
        : string.slice(0, end);

      if (separator === undefined) {
        return result + omission;
      }
      if (strSymbols) {
        end += (result.length - end);
      }
      if (isRegExp(separator)) {
        if (string.slice(end).search(separator)) {
          var match,
              substring = result;

          if (!separator.global) {
            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
          }
          separator.lastIndex = 0;
          while ((match = separator.exec(substring))) {
            var newEnd = match.index;
          }
          result = result.slice(0, newEnd === undefined ? end : newEnd);
        }
      } else if (string.indexOf(baseToString(separator), end) != end) {
        var index = result.lastIndexOf(separator);
        if (index > -1) {
          result = result.slice(0, index);
        }
      }
      return result + omission;
    }

    /**
     * The inverse of `_.escape`; this method converts the HTML entities
     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
     * their corresponding characters.
     *
     * **Note:** No other HTML entities are unescaped. To unescape additional
     * HTML entities use a third-party library like [_he_](https://mths.be/he).
     *
     * @static
     * @memberOf _
     * @since 0.6.0
     * @category String
     * @param {string} [string=''] The string to unescape.
     * @returns {string} Returns the unescaped string.
     * @example
     *
     * _.unescape('fred, barney, &amp; pebbles');
     * // => 'fred, barney, & pebbles'
     */
    function unescape(string) {
      string = toString(string);
      return (string && reHasEscapedHtml.test(string))
        ? string.replace(reEscapedHtml, unescapeHtmlChar)
        : string;
    }

    /**
     * Converts `string`, as space separated words, to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.upperCase('--foo-bar');
     * // => 'FOO BAR'
     *
     * _.upperCase('fooBar');
     * // => 'FOO BAR'
     *
     * _.upperCase('__foo_bar__');
     * // => 'FOO BAR'
     */
    var upperCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toUpperCase();
    });

    /**
     * Converts the first character of `string` to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.upperFirst('fred');
     * // => 'Fred'
     *
     * _.upperFirst('FRED');
     * // => 'FRED'
     */
    var upperFirst = createCaseFirst('toUpperCase');

    /**
     * Splits `string` into an array of its words.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {RegExp|string} [pattern] The pattern to match words.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the words of `string`.
     * @example
     *
     * _.words('fred, barney, & pebbles');
     * // => ['fred', 'barney', 'pebbles']
     *
     * _.words('fred, barney, & pebbles', /[^, ]+/g);
     * // => ['fred', 'barney', '&', 'pebbles']
     */
    function words(string, pattern, guard) {
      string = toString(string);
      pattern = guard ? undefined : pattern;

      if (pattern === undefined) {
        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
      }
      return string.match(pattern) || [];
    }

    /*------------------------------------------------------------------------*/

    /**
     * Attempts to invoke `func`, returning either the result or the caught error
     * object. Any additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Function} func The function to attempt.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {*} Returns the `func` result or error object.
     * @example
     *
     * // Avoid throwing errors for invalid selectors.
     * var elements = _.attempt(function(selector) {
     *   return document.querySelectorAll(selector);
     * }, '>_>');
     *
     * if (_.isError(elements)) {
     *   elements = [];
     * }
     */
    var attempt = baseRest(function(func, args) {
      try {
        return apply(func, undefined, args);
      } catch (e) {
        return isError(e) ? e : new Error(e);
      }
    });

    /**
     * Binds methods of an object to the object itself, overwriting the existing
     * method.
     *
     * **Note:** This method doesn't set the "length" property of bound functions.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Object} object The object to bind and assign the bound methods to.
     * @param {...(string|string[])} methodNames The object method names to bind.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var view = {
     *   'label': 'docs',
     *   'click': function() {
     *     console.log('clicked ' + this.label);
     *   }
     * };
     *
     * _.bindAll(view, ['click']);
     * jQuery(element).on('click', view.click);
     * // => Logs 'clicked docs' when clicked.
     */
    var bindAll = flatRest(function(object, methodNames) {
      arrayEach(methodNames, function(key) {
        key = toKey(key);
        baseAssignValue(object, key, bind(object[key], object));
      });
      return object;
    });

    /**
     * Creates a function that iterates over `pairs` and invokes the corresponding
     * function of the first predicate to return truthy. The predicate-function
     * pairs are invoked with the `this` binding and arguments of the created
     * function.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Array} pairs The predicate-function pairs.
     * @returns {Function} Returns the new composite function.
     * @example
     *
     * var func = _.cond([
     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
     *   [_.stubTrue,                      _.constant('no match')]
     * ]);
     *
     * func({ 'a': 1, 'b': 2 });
     * // => 'matches A'
     *
     * func({ 'a': 0, 'b': 1 });
     * // => 'matches B'
     *
     * func({ 'a': '1', 'b': '2' });
     * // => 'no match'
     */
    function cond(pairs) {
      var length = pairs == null ? 0 : pairs.length,
          toIteratee = getIteratee();

      pairs = !length ? [] : arrayMap(pairs, function(pair) {
        if (typeof pair[1] != 'function') {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
        return [toIteratee(pair[0]), pair[1]];
      });

      return baseRest(function(args) {
        var index = -1;
        while (++index < length) {
          var pair = pairs[index];
          if (apply(pair[0], this, args)) {
            return apply(pair[1], this, args);
          }
        }
      });
    }

    /**
     * Creates a function that invokes the predicate properties of `source` with
     * the corresponding property values of a given object, returning `true` if
     * all predicates return truthy, else `false`.
     *
     * **Note:** The created function is equivalent to `_.conformsTo` with
     * `source` partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 2, 'b': 1 },
     *   { 'a': 1, 'b': 2 }
     * ];
     *
     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
     * // => [{ 'a': 1, 'b': 2 }]
     */
    function conforms(source) {
      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that returns `value`.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {*} value The value to return from the new function.
     * @returns {Function} Returns the new constant function.
     * @example
     *
     * var objects = _.times(2, _.constant({ 'a': 1 }));
     *
     * console.log(objects);
     * // => [{ 'a': 1 }, { 'a': 1 }]
     *
     * console.log(objects[0] === objects[1]);
     * // => true
     */
    function constant(value) {
      return function() {
        return value;
      };
    }

    /**
     * Checks `value` to determine whether a default value should be returned in
     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
     * or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Util
     * @param {*} value The value to check.
     * @param {*} defaultValue The default value.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * _.defaultTo(1, 10);
     * // => 1
     *
     * _.defaultTo(undefined, 10);
     * // => 10
     */
    function defaultTo(value, defaultValue) {
      return (value == null || value !== value) ? defaultValue : value;
    }

    /**
     * Creates a function that returns the result of invoking the given functions
     * with the `this` binding of the created function, where each successive
     * invocation is supplied the return value of the previous.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flowRight
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flow([_.add, square]);
     * addSquare(1, 2);
     * // => 9
     */
    var flow = createFlow();

    /**
     * This method is like `_.flow` except that it creates a function that
     * invokes the given functions from right to left.
     *
     * @static
     * @since 3.0.0
     * @memberOf _
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flow
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flowRight([square, _.add]);
     * addSquare(1, 2);
     * // => 9
     */
    var flowRight = createFlow(true);

    /**
     * This method returns the first argument it receives.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {*} value Any value.
     * @returns {*} Returns `value`.
     * @example
     *
     * var object = { 'a': 1 };
     *
     * console.log(_.identity(object) === object);
     * // => true
     */
    function identity(value) {
      return value;
    }

    /**
     * Creates a function that invokes `func` with the arguments of the created
     * function. If `func` is a property name, the created function returns the
     * property value for a given element. If `func` is an array or object, the
     * created function returns `true` for elements that contain the equivalent
     * source properties, otherwise it returns `false`.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Util
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @returns {Function} Returns the callback.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, _.iteratee(['user', 'fred']));
     * // => [{ 'user': 'fred', 'age': 40 }]
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, _.iteratee('user'));
     * // => ['barney', 'fred']
     *
     * // Create custom iteratee shorthands.
     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
     *     return func.test(string);
     *   };
     * });
     *
     * _.filter(['abc', 'def'], /ef/);
     * // => ['def']
     */
    function iteratee(func) {
      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between a given
     * object and `source`, returning `true` if the given object has equivalent
     * property values, else `false`.
     *
     * **Note:** The created function is equivalent to `_.isMatch` with `source`
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * **Note:** Multiple values can be checked by combining several matchers
     * using `_.overSome`
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
     *
     * // Checking for several possible values
     * _.filter(objects, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));
     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
     */
    function matches(source) {
      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between the
     * value at `path` of a given object to `srcValue`, returning `true` if the
     * object value is equivalent, else `false`.
     *
     * **Note:** Partial comparisons will match empty array and empty object
     * `srcValue` values against any array or object value, respectively. See
     * `_.isEqual` for a list of supported value comparisons.
     *
     * **Note:** Multiple values can be checked by combining several matchers
     * using `_.overSome`
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.find(objects, _.matchesProperty('a', 4));
     * // => { 'a': 4, 'b': 5, 'c': 6 }
     *
     * // Checking for several possible values
     * _.filter(objects, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)]));
     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
     */
    function matchesProperty(path, srcValue) {
      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that invokes the method at `path` of a given object.
     * Any additional arguments are provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': _.constant(2) } },
     *   { 'a': { 'b': _.constant(1) } }
     * ];
     *
     * _.map(objects, _.method('a.b'));
     * // => [2, 1]
     *
     * _.map(objects, _.method(['a', 'b']));
     * // => [2, 1]
     */
    var method = baseRest(function(path, args) {
      return function(object) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * The opposite of `_.method`; this method creates a function that invokes
     * the method at a given path of `object`. Any additional arguments are
     * provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Object} object The object to query.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var array = _.times(3, _.constant),
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
     * // => [2, 0]
     */
    var methodOf = baseRest(function(object, args) {
      return function(path) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * Adds all own enumerable string keyed function properties of a source
     * object to the destination object. If `object` is a function, then methods
     * are added to its prototype as well.
     *
     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
     * avoid conflicts caused by modifying the original.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Function|Object} [object=lodash] The destination object.
     * @param {Object} source The object of functions to add.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
     * @returns {Function|Object} Returns `object`.
     * @example
     *
     * function vowels(string) {
     *   return _.filter(string, function(v) {
     *     return /[aeiou]/i.test(v);
     *   });
     * }
     *
     * _.mixin({ 'vowels': vowels });
     * _.vowels('fred');
     * // => ['e']
     *
     * _('fred').vowels().value();
     * // => ['e']
     *
     * _.mixin({ 'vowels': vowels }, { 'chain': false });
     * _('fred').vowels();
     * // => ['e']
     */
    function mixin(object, source, options) {
      var props = keys(source),
          methodNames = baseFunctions(source, props);

      if (options == null &&
          !(isObject(source) && (methodNames.length || !props.length))) {
        options = source;
        source = object;
        object = this;
        methodNames = baseFunctions(source, keys(source));
      }
      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
          isFunc = isFunction(object);

      arrayEach(methodNames, function(methodName) {
        var func = source[methodName];
        object[methodName] = func;
        if (isFunc) {
          object.prototype[methodName] = function() {
            var chainAll = this.__chain__;
            if (chain || chainAll) {
              var result = object(this.__wrapped__),
                  actions = result.__actions__ = copyArray(this.__actions__);

              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
              result.__chain__ = chainAll;
              return result;
            }
            return func.apply(object, arrayPush([this.value()], arguments));
          };
        }
      });

      return object;
    }

    /**
     * Reverts the `_` variable to its previous value and returns a reference to
     * the `lodash` function.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @returns {Function} Returns the `lodash` function.
     * @example
     *
     * var lodash = _.noConflict();
     */
    function noConflict() {
      if (root._ === this) {
        root._ = oldDash;
      }
      return this;
    }

    /**
     * This method returns `undefined`.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Util
     * @example
     *
     * _.times(2, _.noop);
     * // => [undefined, undefined]
     */
    function noop() {
      // No operation performed.
    }

    /**
     * Creates a function that gets the argument at index `n`. If `n` is negative,
     * the nth argument from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [n=0] The index of the argument to return.
     * @returns {Function} Returns the new pass-thru function.
     * @example
     *
     * var func = _.nthArg(1);
     * func('a', 'b', 'c', 'd');
     * // => 'b'
     *
     * var func = _.nthArg(-2);
     * func('a', 'b', 'c', 'd');
     * // => 'c'
     */
    function nthArg(n) {
      n = toInteger(n);
      return baseRest(function(args) {
        return baseNth(args, n);
      });
    }

    /**
     * Creates a function that invokes `iteratees` with the arguments it receives
     * and returns their results.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.over([Math.max, Math.min]);
     *
     * func(1, 2, 3, 4);
     * // => [4, 1]
     */
    var over = createOver(arrayMap);

    /**
     * Creates a function that checks if **all** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * Following shorthands are possible for providing predicates.
     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.
     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overEvery([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => false
     *
     * func(NaN);
     * // => false
     */
    var overEvery = createOver(arrayEvery);

    /**
     * Creates a function that checks if **any** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * Following shorthands are possible for providing predicates.
     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.
     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overSome([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => true
     *
     * func(NaN);
     * // => false
     *
     * var matchesFunc = _.overSome([{ 'a': 1 }, { 'a': 2 }])
     * var matchesPropertyFunc = _.overSome([['a', 1], ['a', 2]])
     */
    var overSome = createOver(arraySome);

    /**
     * Creates a function that returns the value at `path` of a given object.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': 2 } },
     *   { 'a': { 'b': 1 } }
     * ];
     *
     * _.map(objects, _.property('a.b'));
     * // => [2, 1]
     *
     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
     * // => [1, 2]
     */
    function property(path) {
      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
    }

    /**
     * The opposite of `_.property`; this method creates a function that returns
     * the value at a given path of `object`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} object The object to query.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var array = [0, 1, 2],
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
     * // => [2, 0]
     */
    function propertyOf(object) {
      return function(path) {
        return object == null ? undefined : baseGet(object, path);
      };
    }

    /**
     * Creates an array of numbers (positive and/or negative) progressing from
     * `start` up to, but not including, `end`. A step of `-1` is used if a negative
     * `start` is specified without an `end` or `step`. If `end` is not specified,
     * it's set to `start` with `start` then set to `0`.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.rangeRight
     * @example
     *
     * _.range(4);
     * // => [0, 1, 2, 3]
     *
     * _.range(-4);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 5);
     * // => [1, 2, 3, 4]
     *
     * _.range(0, 20, 5);
     * // => [0, 5, 10, 15]
     *
     * _.range(0, -4, -1);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.range(0);
     * // => []
     */
    var range = createRange();

    /**
     * This method is like `_.range` except that it populates values in
     * descending order.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.range
     * @example
     *
     * _.rangeRight(4);
     * // => [3, 2, 1, 0]
     *
     * _.rangeRight(-4);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 5);
     * // => [4, 3, 2, 1]
     *
     * _.rangeRight(0, 20, 5);
     * // => [15, 10, 5, 0]
     *
     * _.rangeRight(0, -4, -1);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.rangeRight(0);
     * // => []
     */
    var rangeRight = createRange(true);

    /**
     * This method returns a new empty array.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Array} Returns the new empty array.
     * @example
     *
     * var arrays = _.times(2, _.stubArray);
     *
     * console.log(arrays);
     * // => [[], []]
     *
     * console.log(arrays[0] === arrays[1]);
     * // => false
     */
    function stubArray() {
      return [];
    }

    /**
     * This method returns `false`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `false`.
     * @example
     *
     * _.times(2, _.stubFalse);
     * // => [false, false]
     */
    function stubFalse() {
      return false;
    }

    /**
     * This method returns a new empty object.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Object} Returns the new empty object.
     * @example
     *
     * var objects = _.times(2, _.stubObject);
     *
     * console.log(objects);
     * // => [{}, {}]
     *
     * console.log(objects[0] === objects[1]);
     * // => false
     */
    function stubObject() {
      return {};
    }

    /**
     * This method returns an empty string.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {string} Returns the empty string.
     * @example
     *
     * _.times(2, _.stubString);
     * // => ['', '']
     */
    function stubString() {
      return '';
    }

    /**
     * This method returns `true`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `true`.
     * @example
     *
     * _.times(2, _.stubTrue);
     * // => [true, true]
     */
    function stubTrue() {
      return true;
    }

    /**
     * Invokes the iteratee `n` times, returning an array of the results of
     * each invocation. The iteratee is invoked with one argument; (index).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} n The number of times to invoke `iteratee`.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.times(3, String);
     * // => ['0', '1', '2']
     *
     *  _.times(4, _.constant(0));
     * // => [0, 0, 0, 0]
     */
    function times(n, iteratee) {
      n = toInteger(n);
      if (n < 1 || n > MAX_SAFE_INTEGER) {
        return [];
      }
      var index = MAX_ARRAY_LENGTH,
          length = nativeMin(n, MAX_ARRAY_LENGTH);

      iteratee = getIteratee(iteratee);
      n -= MAX_ARRAY_LENGTH;

      var result = baseTimes(length, iteratee);
      while (++index < n) {
        iteratee(index);
      }
      return result;
    }

    /**
     * Converts `value` to a property path array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {*} value The value to convert.
     * @returns {Array} Returns the new property path array.
     * @example
     *
     * _.toPath('a.b.c');
     * // => ['a', 'b', 'c']
     *
     * _.toPath('a[0].b.c');
     * // => ['a', '0', 'b', 'c']
     */
    function toPath(value) {
      if (isArray(value)) {
        return arrayMap(value, toKey);
      }
      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
    }

    /**
     * Generates a unique ID. If `prefix` is given, the ID is appended to it.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {string} [prefix=''] The value to prefix the ID with.
     * @returns {string} Returns the unique ID.
     * @example
     *
     * _.uniqueId('contact_');
     * // => 'contact_104'
     *
     * _.uniqueId();
     * // => '105'
     */
    function uniqueId(prefix) {
      var id = ++idCounter;
      return toString(prefix) + id;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Adds two numbers.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {number} augend The first number in an addition.
     * @param {number} addend The second number in an addition.
     * @returns {number} Returns the total.
     * @example
     *
     * _.add(6, 4);
     * // => 10
     */
    var add = createMathOperation(function(augend, addend) {
      return augend + addend;
    }, 0);

    /**
     * Computes `number` rounded up to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round up.
     * @param {number} [precision=0] The precision to round up to.
     * @returns {number} Returns the rounded up number.
     * @example
     *
     * _.ceil(4.006);
     * // => 5
     *
     * _.ceil(6.004, 2);
     * // => 6.01
     *
     * _.ceil(6040, -2);
     * // => 6100
     */
    var ceil = createRound('ceil');

    /**
     * Divide two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} dividend The first number in a division.
     * @param {number} divisor The second number in a division.
     * @returns {number} Returns the quotient.
     * @example
     *
     * _.divide(6, 4);
     * // => 1.5
     */
    var divide = createMathOperation(function(dividend, divisor) {
      return dividend / divisor;
    }, 1);

    /**
     * Computes `number` rounded down to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round down.
     * @param {number} [precision=0] The precision to round down to.
     * @returns {number} Returns the rounded down number.
     * @example
     *
     * _.floor(4.006);
     * // => 4
     *
     * _.floor(0.046, 2);
     * // => 0.04
     *
     * _.floor(4060, -2);
     * // => 4000
     */
    var floor = createRound('floor');

    /**
     * Computes the maximum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * _.max([4, 2, 8, 6]);
     * // => 8
     *
     * _.max([]);
     * // => undefined
     */
    function max(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseGt)
        : undefined;
    }

    /**
     * This method is like `_.max` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.maxBy(objects, function(o) { return o.n; });
     * // => { 'n': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.maxBy(objects, 'n');
     * // => { 'n': 2 }
     */
    function maxBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
        : undefined;
    }

    /**
     * Computes the mean of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the mean.
     * @example
     *
     * _.mean([4, 2, 8, 6]);
     * // => 5
     */
    function mean(array) {
      return baseMean(array, identity);
    }

    /**
     * This method is like `_.mean` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be averaged.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the mean.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.meanBy(objects, function(o) { return o.n; });
     * // => 5
     *
     * // The `_.property` iteratee shorthand.
     * _.meanBy(objects, 'n');
     * // => 5
     */
    function meanBy(array, iteratee) {
      return baseMean(array, getIteratee(iteratee, 2));
    }

    /**
     * Computes the minimum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * _.min([4, 2, 8, 6]);
     * // => 2
     *
     * _.min([]);
     * // => undefined
     */
    function min(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseLt)
        : undefined;
    }

    /**
     * This method is like `_.min` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.minBy(objects, function(o) { return o.n; });
     * // => { 'n': 1 }
     *
     * // The `_.property` iteratee shorthand.
     * _.minBy(objects, 'n');
     * // => { 'n': 1 }
     */
    function minBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
        : undefined;
    }

    /**
     * Multiply two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} multiplier The first number in a multiplication.
     * @param {number} multiplicand The second number in a multiplication.
     * @returns {number} Returns the product.
     * @example
     *
     * _.multiply(6, 4);
     * // => 24
     */
    var multiply = createMathOperation(function(multiplier, multiplicand) {
      return multiplier * multiplicand;
    }, 1);

    /**
     * Computes `number` rounded to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round.
     * @param {number} [precision=0] The precision to round to.
     * @returns {number} Returns the rounded number.
     * @example
     *
     * _.round(4.006);
     * // => 4
     *
     * _.round(4.006, 2);
     * // => 4.01
     *
     * _.round(4060, -2);
     * // => 4100
     */
    var round = createRound('round');

    /**
     * Subtract two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {number} minuend The first number in a subtraction.
     * @param {number} subtrahend The second number in a subtraction.
     * @returns {number} Returns the difference.
     * @example
     *
     * _.subtract(6, 4);
     * // => 2
     */
    var subtract = createMathOperation(function(minuend, subtrahend) {
      return minuend - subtrahend;
    }, 0);

    /**
     * Computes the sum of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.sum([4, 2, 8, 6]);
     * // => 20
     */
    function sum(array) {
      return (array && array.length)
        ? baseSum(array, identity)
        : 0;
    }

    /**
     * This method is like `_.sum` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be summed.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the sum.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.sumBy(objects, function(o) { return o.n; });
     * // => 20
     *
     * // The `_.property` iteratee shorthand.
     * _.sumBy(objects, 'n');
     * // => 20
     */
    function sumBy(array, iteratee) {
      return (array && array.length)
        ? baseSum(array, getIteratee(iteratee, 2))
        : 0;
    }

    /*------------------------------------------------------------------------*/

    // Add methods that return wrapped values in chain sequences.
    lodash.after = after;
    lodash.ary = ary;
    lodash.assign = assign;
    lodash.assignIn = assignIn;
    lodash.assignInWith = assignInWith;
    lodash.assignWith = assignWith;
    lodash.at = at;
    lodash.before = before;
    lodash.bind = bind;
    lodash.bindAll = bindAll;
    lodash.bindKey = bindKey;
    lodash.castArray = castArray;
    lodash.chain = chain;
    lodash.chunk = chunk;
    lodash.compact = compact;
    lodash.concat = concat;
    lodash.cond = cond;
    lodash.conforms = conforms;
    lodash.constant = constant;
    lodash.countBy = countBy;
    lodash.create = create;
    lodash.curry = curry;
    lodash.curryRight = curryRight;
    lodash.debounce = debounce;
    lodash.defaults = defaults;
    lodash.defaultsDeep = defaultsDeep;
    lodash.defer = defer;
    lodash.delay = delay;
    lodash.difference = difference;
    lodash.differenceBy = differenceBy;
    lodash.differenceWith = differenceWith;
    lodash.drop = drop;
    lodash.dropRight = dropRight;
    lodash.dropRightWhile = dropRightWhile;
    lodash.dropWhile = dropWhile;
    lodash.fill = fill;
    lodash.filter = filter;
    lodash.flatMap = flatMap;
    lodash.flatMapDeep = flatMapDeep;
    lodash.flatMapDepth = flatMapDepth;
    lodash.flatten = flatten;
    lodash.flattenDeep = flattenDeep;
    lodash.flattenDepth = flattenDepth;
    lodash.flip = flip;
    lodash.flow = flow;
    lodash.flowRight = flowRight;
    lodash.fromPairs = fromPairs;
    lodash.functions = functions;
    lodash.functionsIn = functionsIn;
    lodash.groupBy = groupBy;
    lodash.initial = initial;
    lodash.intersection = intersection;
    lodash.intersectionBy = intersectionBy;
    lodash.intersectionWith = intersectionWith;
    lodash.invert = invert;
    lodash.invertBy = invertBy;
    lodash.invokeMap = invokeMap;
    lodash.iteratee = iteratee;
    lodash.keyBy = keyBy;
    lodash.keys = keys;
    lodash.keysIn = keysIn;
    lodash.map = map;
    lodash.mapKeys = mapKeys;
    lodash.mapValues = mapValues;
    lodash.matches = matches;
    lodash.matchesProperty = matchesProperty;
    lodash.memoize = memoize;
    lodash.merge = merge;
    lodash.mergeWith = mergeWith;
    lodash.method = method;
    lodash.methodOf = methodOf;
    lodash.mixin = mixin;
    lodash.negate = negate;
    lodash.nthArg = nthArg;
    lodash.omit = omit;
    lodash.omitBy = omitBy;
    lodash.once = once;
    lodash.orderBy = orderBy;
    lodash.over = over;
    lodash.overArgs = overArgs;
    lodash.overEvery = overEvery;
    lodash.overSome = overSome;
    lodash.partial = partial;
    lodash.partialRight = partialRight;
    lodash.partition = partition;
    lodash.pick = pick;
    lodash.pickBy = pickBy;
    lodash.property = property;
    lodash.propertyOf = propertyOf;
    lodash.pull = pull;
    lodash.pullAll = pullAll;
    lodash.pullAllBy = pullAllBy;
    lodash.pullAllWith = pullAllWith;
    lodash.pullAt = pullAt;
    lodash.range = range;
    lodash.rangeRight = rangeRight;
    lodash.rearg = rearg;
    lodash.reject = reject;
    lodash.remove = remove;
    lodash.rest = rest;
    lodash.reverse = reverse;
    lodash.sampleSize = sampleSize;
    lodash.set = set;
    lodash.setWith = setWith;
    lodash.shuffle = shuffle;
    lodash.slice = slice;
    lodash.sortBy = sortBy;
    lodash.sortedUniq = sortedUniq;
    lodash.sortedUniqBy = sortedUniqBy;
    lodash.split = split;
    lodash.spread = spread;
    lodash.tail = tail;
    lodash.take = take;
    lodash.takeRight = takeRight;
    lodash.takeRightWhile = takeRightWhile;
    lodash.takeWhile = takeWhile;
    lodash.tap = tap;
    lodash.throttle = throttle;
    lodash.thru = thru;
    lodash.toArray = toArray;
    lodash.toPairs = toPairs;
    lodash.toPairsIn = toPairsIn;
    lodash.toPath = toPath;
    lodash.toPlainObject = toPlainObject;
    lodash.transform = transform;
    lodash.unary = unary;
    lodash.union = union;
    lodash.unionBy = unionBy;
    lodash.unionWith = unionWith;
    lodash.uniq = uniq;
    lodash.uniqBy = uniqBy;
    lodash.uniqWith = uniqWith;
    lodash.unset = unset;
    lodash.unzip = unzip;
    lodash.unzipWith = unzipWith;
    lodash.update = update;
    lodash.updateWith = updateWith;
    lodash.values = values;
    lodash.valuesIn = valuesIn;
    lodash.without = without;
    lodash.words = words;
    lodash.wrap = wrap;
    lodash.xor = xor;
    lodash.xorBy = xorBy;
    lodash.xorWith = xorWith;
    lodash.zip = zip;
    lodash.zipObject = zipObject;
    lodash.zipObjectDeep = zipObjectDeep;
    lodash.zipWith = zipWith;

    // Add aliases.
    lodash.entries = toPairs;
    lodash.entriesIn = toPairsIn;
    lodash.extend = assignIn;
    lodash.extendWith = assignInWith;

    // Add methods to `lodash.prototype`.
    mixin(lodash, lodash);

    /*------------------------------------------------------------------------*/

    // Add methods that return unwrapped values in chain sequences.
    lodash.add = add;
    lodash.attempt = attempt;
    lodash.camelCase = camelCase;
    lodash.capitalize = capitalize;
    lodash.ceil = ceil;
    lodash.clamp = clamp;
    lodash.clone = clone;
    lodash.cloneDeep = cloneDeep;
    lodash.cloneDeepWith = cloneDeepWith;
    lodash.cloneWith = cloneWith;
    lodash.conformsTo = conformsTo;
    lodash.deburr = deburr;
    lodash.defaultTo = defaultTo;
    lodash.divide = divide;
    lodash.endsWith = endsWith;
    lodash.eq = eq;
    lodash.escape = escape;
    lodash.escapeRegExp = escapeRegExp;
    lodash.every = every;
    lodash.find = find;
    lodash.findIndex = findIndex;
    lodash.findKey = findKey;
    lodash.findLast = findLast;
    lodash.findLastIndex = findLastIndex;
    lodash.findLastKey = findLastKey;
    lodash.floor = floor;
    lodash.forEach = forEach;
    lodash.forEachRight = forEachRight;
    lodash.forIn = forIn;
    lodash.forInRight = forInRight;
    lodash.forOwn = forOwn;
    lodash.forOwnRight = forOwnRight;
    lodash.get = get;
    lodash.gt = gt;
    lodash.gte = gte;
    lodash.has = has;
    lodash.hasIn = hasIn;
    lodash.head = head;
    lodash.identity = identity;
    lodash.includes = includes;
    lodash.indexOf = indexOf;
    lodash.inRange = inRange;
    lodash.invoke = invoke;
    lodash.isArguments = isArguments;
    lodash.isArray = isArray;
    lodash.isArrayBuffer = isArrayBuffer;
    lodash.isArrayLike = isArrayLike;
    lodash.isArrayLikeObject = isArrayLikeObject;
    lodash.isBoolean = isBoolean;
    lodash.isBuffer = isBuffer;
    lodash.isDate = isDate;
    lodash.isElement = isElement;
    lodash.isEmpty = isEmpty;
    lodash.isEqual = isEqual;
    lodash.isEqualWith = isEqualWith;
    lodash.isError = isError;
    lodash.isFinite = isFinite;
    lodash.isFunction = isFunction;
    lodash.isInteger = isInteger;
    lodash.isLength = isLength;
    lodash.isMap = isMap;
    lodash.isMatch = isMatch;
    lodash.isMatchWith = isMatchWith;
    lodash.isNaN = isNaN;
    lodash.isNative = isNative;
    lodash.isNil = isNil;
    lodash.isNull = isNull;
    lodash.isNumber = isNumber;
    lodash.isObject = isObject;
    lodash.isObjectLike = isObjectLike;
    lodash.isPlainObject = isPlainObject;
    lodash.isRegExp = isRegExp;
    lodash.isSafeInteger = isSafeInteger;
    lodash.isSet = isSet;
    lodash.isString = isString;
    lodash.isSymbol = isSymbol;
    lodash.isTypedArray = isTypedArray;
    lodash.isUndefined = isUndefined;
    lodash.isWeakMap = isWeakMap;
    lodash.isWeakSet = isWeakSet;
    lodash.join = join;
    lodash.kebabCase = kebabCase;
    lodash.last = last;
    lodash.lastIndexOf = lastIndexOf;
    lodash.lowerCase = lowerCase;
    lodash.lowerFirst = lowerFirst;
    lodash.lt = lt;
    lodash.lte = lte;
    lodash.max = max;
    lodash.maxBy = maxBy;
    lodash.mean = mean;
    lodash.meanBy = meanBy;
    lodash.min = min;
    lodash.minBy = minBy;
    lodash.stubArray = stubArray;
    lodash.stubFalse = stubFalse;
    lodash.stubObject = stubObject;
    lodash.stubString = stubString;
    lodash.stubTrue = stubTrue;
    lodash.multiply = multiply;
    lodash.nth = nth;
    lodash.noConflict = noConflict;
    lodash.noop = noop;
    lodash.now = now;
    lodash.pad = pad;
    lodash.padEnd = padEnd;
    lodash.padStart = padStart;
    lodash.parseInt = parseInt;
    lodash.random = random;
    lodash.reduce = reduce;
    lodash.reduceRight = reduceRight;
    lodash.repeat = repeat;
    lodash.replace = replace;
    lodash.result = result;
    lodash.round = round;
    lodash.runInContext = runInContext;
    lodash.sample = sample;
    lodash.size = size;
    lodash.snakeCase = snakeCase;
    lodash.some = some;
    lodash.sortedIndex = sortedIndex;
    lodash.sortedIndexBy = sortedIndexBy;
    lodash.sortedIndexOf = sortedIndexOf;
    lodash.sortedLastIndex = sortedLastIndex;
    lodash.sortedLastIndexBy = sortedLastIndexBy;
    lodash.sortedLastIndexOf = sortedLastIndexOf;
    lodash.startCase = startCase;
    lodash.startsWith = startsWith;
    lodash.subtract = subtract;
    lodash.sum = sum;
    lodash.sumBy = sumBy;
    lodash.template = template;
    lodash.times = times;
    lodash.toFinite = toFinite;
    lodash.toInteger = toInteger;
    lodash.toLength = toLength;
    lodash.toLower = toLower;
    lodash.toNumber = toNumber;
    lodash.toSafeInteger = toSafeInteger;
    lodash.toString = toString;
    lodash.toUpper = toUpper;
    lodash.trim = trim;
    lodash.trimEnd = trimEnd;
    lodash.trimStart = trimStart;
    lodash.truncate = truncate;
    lodash.unescape = unescape;
    lodash.uniqueId = uniqueId;
    lodash.upperCase = upperCase;
    lodash.upperFirst = upperFirst;

    // Add aliases.
    lodash.each = forEach;
    lodash.eachRight = forEachRight;
    lodash.first = head;

    mixin(lodash, (function() {
      var source = {};
      baseForOwn(lodash, function(func, methodName) {
        if (!hasOwnProperty.call(lodash.prototype, methodName)) {
          source[methodName] = func;
        }
      });
      return source;
    }()), { 'chain': false });

    /*------------------------------------------------------------------------*/

    /**
     * The semantic version number.
     *
     * @static
     * @memberOf _
     * @type {string}
     */
    lodash.VERSION = VERSION;

    // Assign default placeholders.
    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
      lodash[methodName].placeholder = lodash;
    });

    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
    arrayEach(['drop', 'take'], function(methodName, index) {
      LazyWrapper.prototype[methodName] = function(n) {
        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);

        var result = (this.__filtered__ && !index)
          ? new LazyWrapper(this)
          : this.clone();

        if (result.__filtered__) {
          result.__takeCount__ = nativeMin(n, result.__takeCount__);
        } else {
          result.__views__.push({
            'size': nativeMin(n, MAX_ARRAY_LENGTH),
            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
          });
        }
        return result;
      };

      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
        return this.reverse()[methodName](n).reverse();
      };
    });

    // Add `LazyWrapper` methods that accept an `iteratee` value.
    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
      var type = index + 1,
          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;

      LazyWrapper.prototype[methodName] = function(iteratee) {
        var result = this.clone();
        result.__iteratees__.push({
          'iteratee': getIteratee(iteratee, 3),
          'type': type
        });
        result.__filtered__ = result.__filtered__ || isFilter;
        return result;
      };
    });

    // Add `LazyWrapper` methods for `_.head` and `_.last`.
    arrayEach(['head', 'last'], function(methodName, index) {
      var takeName = 'take' + (index ? 'Right' : '');

      LazyWrapper.prototype[methodName] = function() {
        return this[takeName](1).value()[0];
      };
    });

    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
    arrayEach(['initial', 'tail'], function(methodName, index) {
      var dropName = 'drop' + (index ? '' : 'Right');

      LazyWrapper.prototype[methodName] = function() {
        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
      };
    });

    LazyWrapper.prototype.compact = function() {
      return this.filter(identity);
    };

    LazyWrapper.prototype.find = function(predicate) {
      return this.filter(predicate).head();
    };

    LazyWrapper.prototype.findLast = function(predicate) {
      return this.reverse().find(predicate);
    };

    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
      if (typeof path == 'function') {
        return new LazyWrapper(this);
      }
      return this.map(function(value) {
        return baseInvoke(value, path, args);
      });
    });

    LazyWrapper.prototype.reject = function(predicate) {
      return this.filter(negate(getIteratee(predicate)));
    };

    LazyWrapper.prototype.slice = function(start, end) {
      start = toInteger(start);

      var result = this;
      if (result.__filtered__ && (start > 0 || end < 0)) {
        return new LazyWrapper(result);
      }
      if (start < 0) {
        result = result.takeRight(-start);
      } else if (start) {
        result = result.drop(start);
      }
      if (end !== undefined) {
        end = toInteger(end);
        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
      }
      return result;
    };

    LazyWrapper.prototype.takeRightWhile = function(predicate) {
      return this.reverse().takeWhile(predicate).reverse();
    };

    LazyWrapper.prototype.toArray = function() {
      return this.take(MAX_ARRAY_LENGTH);
    };

    // Add `LazyWrapper` methods to `lodash.prototype`.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
          isTaker = /^(?:head|last)$/.test(methodName),
          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
          retUnwrapped = isTaker || /^find/.test(methodName);

      if (!lodashFunc) {
        return;
      }
      lodash.prototype[methodName] = function() {
        var value = this.__wrapped__,
            args = isTaker ? [1] : arguments,
            isLazy = value instanceof LazyWrapper,
            iteratee = args[0],
            useLazy = isLazy || isArray(value);

        var interceptor = function(value) {
          var result = lodashFunc.apply(lodash, arrayPush([value], args));
          return (isTaker && chainAll) ? result[0] : result;
        };

        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
          // Avoid lazy use if the iteratee has a "length" value other than `1`.
          isLazy = useLazy = false;
        }
        var chainAll = this.__chain__,
            isHybrid = !!this.__actions__.length,
            isUnwrapped = retUnwrapped && !chainAll,
            onlyLazy = isLazy && !isHybrid;

        if (!retUnwrapped && useLazy) {
          value = onlyLazy ? value : new LazyWrapper(this);
          var result = func.apply(value, args);
          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
          return new LodashWrapper(result, chainAll);
        }
        if (isUnwrapped && onlyLazy) {
          return func.apply(this, args);
        }
        result = this.thru(interceptor);
        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
      };
    });

    // Add `Array` methods to `lodash.prototype`.
    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
      var func = arrayProto[methodName],
          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
          retUnwrapped = /^(?:pop|shift)$/.test(methodName);

      lodash.prototype[methodName] = function() {
        var args = arguments;
        if (retUnwrapped && !this.__chain__) {
          var value = this.value();
          return func.apply(isArray(value) ? value : [], args);
        }
        return this[chainName](function(value) {
          return func.apply(isArray(value) ? value : [], args);
        });
      };
    });

    // Map minified method names to their real names.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var lodashFunc = lodash[methodName];
      if (lodashFunc) {
        var key = lodashFunc.name + '';
        if (!hasOwnProperty.call(realNames, key)) {
          realNames[key] = [];
        }
        realNames[key].push({ 'name': methodName, 'func': lodashFunc });
      }
    });

    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
      'name': 'wrapper',
      'func': undefined
    }];

    // Add methods to `LazyWrapper`.
    LazyWrapper.prototype.clone = lazyClone;
    LazyWrapper.prototype.reverse = lazyReverse;
    LazyWrapper.prototype.value = lazyValue;

    // Add chain sequence methods to the `lodash` wrapper.
    lodash.prototype.at = wrapperAt;
    lodash.prototype.chain = wrapperChain;
    lodash.prototype.commit = wrapperCommit;
    lodash.prototype.next = wrapperNext;
    lodash.prototype.plant = wrapperPlant;
    lodash.prototype.reverse = wrapperReverse;
    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;

    // Add lazy aliases.
    lodash.prototype.first = lodash.prototype.head;

    if (symIterator) {
      lodash.prototype[symIterator] = wrapperToIterator;
    }
    return lodash;
  });

  /*--------------------------------------------------------------------------*/

  // Export lodash.
  var _ = runInContext();

  // Some AMD build optimizers, like r.js, check for condition patterns like:
  if (true) {
    // Expose Lodash on the global object to prevent errors when Lodash is
    // loaded by a script tag in the presence of an AMD loader.
    // See http://requirejs.org/docs/errors.html#mismatch for more details.
    // Use `_.noConflict` to remove Lodash from the global object.
    root._ = _;

    // Define as an anonymous module so, through path mapping, it can be
    // referenced as the "underscore" module.
    !(__WEBPACK_AMD_DEFINE_RESULT__ = (function() {
      return _;
    }).call(exports, __webpack_require__, exports, module),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  }
  // Check for `exports` after `define` in case a build optimizer adds it.
  else {}
}.call(this));

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__("c8ba"), __webpack_require__("62e4")(module)))

/***/ }),

/***/ "3323":
/***/ (function(module, exports, __webpack_require__) {

// style-loader: Adds some css to the DOM by adding a <style> tag

// load the styles
var content = __webpack_require__("0748");
if(content.__esModule) content = content.default;
if(typeof content === 'string') content = [[module.i, content, '']];
if(content.locals) module.exports = content.locals;
// add the styles to the DOM
var add = __webpack_require__("499e").default
var update = add("e24fd4fc", content, true, {"sourceMap":false,"shadowMode":false});

/***/ }),

/***/ "499e":
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
// ESM COMPAT FLAG
__webpack_require__.r(__webpack_exports__);

// EXPORTS
__webpack_require__.d(__webpack_exports__, "default", function() { return /* binding */ addStylesClient; });

// CONCATENATED MODULE: ./node_modules/vue-style-loader/lib/listToStyles.js
/**
 * Translates the list format produced by css-loader into something
 * easier to manipulate.
 */
function listToStyles (parentId, list) {
  var styles = []
  var newStyles = {}
  for (var i = 0; i < list.length; i++) {
    var item = list[i]
    var id = item[0]
    var css = item[1]
    var media = item[2]
    var sourceMap = item[3]
    var part = {
      id: parentId + ':' + i,
      css: css,
      media: media,
      sourceMap: sourceMap
    }
    if (!newStyles[id]) {
      styles.push(newStyles[id] = { id: id, parts: [part] })
    } else {
      newStyles[id].parts.push(part)
    }
  }
  return styles
}

// CONCATENATED MODULE: ./node_modules/vue-style-loader/lib/addStylesClient.js
/*
  MIT License http://www.opensource.org/licenses/mit-license.php
  Author Tobias Koppers @sokra
  Modified by Evan You @yyx990803
*/



var hasDocument = typeof document !== 'undefined'

if (typeof DEBUG !== 'undefined' && DEBUG) {
  if (!hasDocument) {
    throw new Error(
    'vue-style-loader cannot be used in a non-browser environment. ' +
    "Use { target: 'node' } in your Webpack config to indicate a server-rendering environment."
  ) }
}

/*
type StyleObject = {
  id: number;
  parts: Array<StyleObjectPart>
}

type StyleObjectPart = {
  css: string;
  media: string;
  sourceMap: ?string
}
*/

var stylesInDom = {/*
  [id: number]: {
    id: number,
    refs: number,
    parts: Array<(obj?: StyleObjectPart) => void>
  }
*/}

var head = hasDocument && (document.head || document.getElementsByTagName('head')[0])
var singletonElement = null
var singletonCounter = 0
var isProduction = false
var noop = function () {}
var options = null
var ssrIdKey = 'data-vue-ssr-id'

// Force single-tag solution on IE6-9, which has a hard limit on the # of <style>
// tags it will allow on a page
var isOldIE = typeof navigator !== 'undefined' && /msie [6-9]\b/.test(navigator.userAgent.toLowerCase())

function addStylesClient (parentId, list, _isProduction, _options) {
  isProduction = _isProduction

  options = _options || {}

  var styles = listToStyles(parentId, list)
  addStylesToDom(styles)

  return function update (newList) {
    var mayRemove = []
    for (var i = 0; i < styles.length; i++) {
      var item = styles[i]
      var domStyle = stylesInDom[item.id]
      domStyle.refs--
      mayRemove.push(domStyle)
    }
    if (newList) {
      styles = listToStyles(parentId, newList)
      addStylesToDom(styles)
    } else {
      styles = []
    }
    for (var i = 0; i < mayRemove.length; i++) {
      var domStyle = mayRemove[i]
      if (domStyle.refs === 0) {
        for (var j = 0; j < domStyle.parts.length; j++) {
          domStyle.parts[j]()
        }
        delete stylesInDom[domStyle.id]
      }
    }
  }
}

function addStylesToDom (styles /* Array<StyleObject> */) {
  for (var i = 0; i < styles.length; i++) {
    var item = styles[i]
    var domStyle = stylesInDom[item.id]
    if (domStyle) {
      domStyle.refs++
      for (var j = 0; j < domStyle.parts.length; j++) {
        domStyle.parts[j](item.parts[j])
      }
      for (; j < item.parts.length; j++) {
        domStyle.parts.push(addStyle(item.parts[j]))
      }
      if (domStyle.parts.length > item.parts.length) {
        domStyle.parts.length = item.parts.length
      }
    } else {
      var parts = []
      for (var j = 0; j < item.parts.length; j++) {
        parts.push(addStyle(item.parts[j]))
      }
      stylesInDom[item.id] = { id: item.id, refs: 1, parts: parts }
    }
  }
}

function createStyleElement () {
  var styleElement = document.createElement('style')
  styleElement.type = 'text/css'
  head.appendChild(styleElement)
  return styleElement
}

function addStyle (obj /* StyleObjectPart */) {
  var update, remove
  var styleElement = document.querySelector('style[' + ssrIdKey + '~="' + obj.id + '"]')

  if (styleElement) {
    if (isProduction) {
      // has SSR styles and in production mode.
      // simply do nothing.
      return noop
    } else {
      // has SSR styles but in dev mode.
      // for some reason Chrome can't handle source map in server-rendered
      // style tags - source maps in <style> only works if the style tag is
      // created and inserted dynamically. So we remove the server rendered
      // styles and inject new ones.
      styleElement.parentNode.removeChild(styleElement)
    }
  }

  if (isOldIE) {
    // use singleton mode for IE9.
    var styleIndex = singletonCounter++
    styleElement = singletonElement || (singletonElement = createStyleElement())
    update = applyToSingletonTag.bind(null, styleElement, styleIndex, false)
    remove = applyToSingletonTag.bind(null, styleElement, styleIndex, true)
  } else {
    // use multi-style-tag mode in all other cases
    styleElement = createStyleElement()
    update = applyToTag.bind(null, styleElement)
    remove = function () {
      styleElement.parentNode.removeChild(styleElement)
    }
  }

  update(obj)

  return function updateStyle (newObj /* StyleObjectPart */) {
    if (newObj) {
      if (newObj.css === obj.css &&
          newObj.media === obj.media &&
          newObj.sourceMap === obj.sourceMap) {
        return
      }
      update(obj = newObj)
    } else {
      remove()
    }
  }
}

var replaceText = (function () {
  var textStore = []

  return function (index, replacement) {
    textStore[index] = replacement
    return textStore.filter(Boolean).join('\n')
  }
})()

function applyToSingletonTag (styleElement, index, remove, obj) {
  var css = remove ? '' : obj.css

  if (styleElement.styleSheet) {
    styleElement.styleSheet.cssText = replaceText(index, css)
  } else {
    var cssNode = document.createTextNode(css)
    var childNodes = styleElement.childNodes
    if (childNodes[index]) styleElement.removeChild(childNodes[index])
    if (childNodes.length) {
      styleElement.insertBefore(cssNode, childNodes[index])
    } else {
      styleElement.appendChild(cssNode)
    }
  }
}

function applyToTag (styleElement, obj) {
  var css = obj.css
  var media = obj.media
  var sourceMap = obj.sourceMap

  if (media) {
    styleElement.setAttribute('media', media)
  }
  if (options.ssrId) {
    styleElement.setAttribute(ssrIdKey, obj.id)
  }

  if (sourceMap) {
    // https://developer.chrome.com/devtools/docs/javascript-debugging
    // this makes source maps inside style tags work properly in Chrome
    css += '\n/*# sourceURL=' + sourceMap.sources[0] + ' */'
    // http://stackoverflow.com/a/26603875
    css += '\n/*# sourceMappingURL=data:application/json;base64,' + btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap)))) + ' */'
  }

  if (styleElement.styleSheet) {
    styleElement.styleSheet.cssText = css
  } else {
    while (styleElement.firstChild) {
      styleElement.removeChild(styleElement.firstChild)
    }
    styleElement.appendChild(document.createTextNode(css))
  }
}


/***/ }),

/***/ "5292":
/***/ (function(module, exports, __webpack_require__) {

/**
 * Copyright (c) 2014-present, Facebook, Inc.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 */

var runtime = (function (exports) {
  "use strict";

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined; // More compressible than void 0.
  var $Symbol = typeof Symbol === "function" ? Symbol : {};
  var iteratorSymbol = $Symbol.iterator || "@@iterator";
  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

  function define(obj, key, value) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
    return obj[key];
  }
  try {
    // IE 8 has a broken Object.defineProperty that only works on DOM objects.
    define({}, "");
  } catch (err) {
    define = function(obj, key, value) {
      return obj[key] = value;
    };
  }

  function wrap(innerFn, outerFn, self, tryLocsList) {
    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
    var generator = Object.create(protoGenerator.prototype);
    var context = new Context(tryLocsList || []);

    // The ._invoke method unifies the implementations of the .next,
    // .throw, and .return methods.
    generator._invoke = makeInvokeMethod(innerFn, self, context);

    return generator;
  }
  exports.wrap = wrap;

  // Try/catch helper to minimize deoptimizations. Returns a completion
  // record like context.tryEntries[i].completion. This interface could
  // have been (and was previously) designed to take a closure to be
  // invoked without arguments, but in all the cases we care about we
  // already have an existing method we want to call, so there's no need
  // to create a new function object. We can even get away with assuming
  // the method takes exactly one argument, since that happens to be true
  // in every case, so we don't have to touch the arguments object. The
  // only additional allocation required is the completion record, which
  // has a stable shape and so hopefully should be cheap to allocate.
  function tryCatch(fn, obj, arg) {
    try {
      return { type: "normal", arg: fn.call(obj, arg) };
    } catch (err) {
      return { type: "throw", arg: err };
    }
  }

  var GenStateSuspendedStart = "suspendedStart";
  var GenStateSuspendedYield = "suspendedYield";
  var GenStateExecuting = "executing";
  var GenStateCompleted = "completed";

  // Returning this object from the innerFn has the same effect as
  // breaking out of the dispatch switch statement.
  var ContinueSentinel = {};

  // Dummy constructor functions that we use as the .constructor and
  // .constructor.prototype properties for functions that return Generator
  // objects. For full spec compliance, you may wish to configure your
  // minifier not to mangle the names of these two functions.
  function Generator() {}
  function GeneratorFunction() {}
  function GeneratorFunctionPrototype() {}

  // This is a polyfill for %IteratorPrototype% for environments that
  // don't natively support it.
  var IteratorPrototype = {};
  define(IteratorPrototype, iteratorSymbol, function () {
    return this;
  });

  var getProto = Object.getPrototypeOf;
  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
  if (NativeIteratorPrototype &&
      NativeIteratorPrototype !== Op &&
      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
    // This environment has a native %IteratorPrototype%; use it instead
    // of the polyfill.
    IteratorPrototype = NativeIteratorPrototype;
  }

  var Gp = GeneratorFunctionPrototype.prototype =
    Generator.prototype = Object.create(IteratorPrototype);
  GeneratorFunction.prototype = GeneratorFunctionPrototype;
  define(Gp, "constructor", GeneratorFunctionPrototype);
  define(GeneratorFunctionPrototype, "constructor", GeneratorFunction);
  GeneratorFunction.displayName = define(
    GeneratorFunctionPrototype,
    toStringTagSymbol,
    "GeneratorFunction"
  );

  // Helper for defining the .next, .throw, and .return methods of the
  // Iterator interface in terms of a single ._invoke method.
  function defineIteratorMethods(prototype) {
    ["next", "throw", "return"].forEach(function(method) {
      define(prototype, method, function(arg) {
        return this._invoke(method, arg);
      });
    });
  }

  exports.isGeneratorFunction = function(genFun) {
    var ctor = typeof genFun === "function" && genFun.constructor;
    return ctor
      ? ctor === GeneratorFunction ||
        // For the native GeneratorFunction constructor, the best we can
        // do is to check its .name property.
        (ctor.displayName || ctor.name) === "GeneratorFunction"
      : false;
  };

  exports.mark = function(genFun) {
    if (Object.setPrototypeOf) {
      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
    } else {
      genFun.__proto__ = GeneratorFunctionPrototype;
      define(genFun, toStringTagSymbol, "GeneratorFunction");
    }
    genFun.prototype = Object.create(Gp);
    return genFun;
  };

  // Within the body of any async function, `await x` is transformed to
  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
  // `hasOwn.call(value, "__await")` to determine if the yielded value is
  // meant to be awaited.
  exports.awrap = function(arg) {
    return { __await: arg };
  };

  function AsyncIterator(generator, PromiseImpl) {
    function invoke(method, arg, resolve, reject) {
      var record = tryCatch(generator[method], generator, arg);
      if (record.type === "throw") {
        reject(record.arg);
      } else {
        var result = record.arg;
        var value = result.value;
        if (value &&
            typeof value === "object" &&
            hasOwn.call(value, "__await")) {
          return PromiseImpl.resolve(value.__await).then(function(value) {
            invoke("next", value, resolve, reject);
          }, function(err) {
            invoke("throw", err, resolve, reject);
          });
        }

        return PromiseImpl.resolve(value).then(function(unwrapped) {
          // When a yielded Promise is resolved, its final value becomes
          // the .value of the Promise<{value,done}> result for the
          // current iteration.
          result.value = unwrapped;
          resolve(result);
        }, function(error) {
          // If a rejected Promise was yielded, throw the rejection back
          // into the async generator function so it can be handled there.
          return invoke("throw", error, resolve, reject);
        });
      }
    }

    var previousPromise;

    function enqueue(method, arg) {
      function callInvokeWithMethodAndArg() {
        return new PromiseImpl(function(resolve, reject) {
          invoke(method, arg, resolve, reject);
        });
      }

      return previousPromise =
        // If enqueue has been called before, then we want to wait until
        // all previous Promises have been resolved before calling invoke,
        // so that results are always delivered in the correct order. If
        // enqueue has not been called before, then it is important to
        // call invoke immediately, without waiting on a callback to fire,
        // so that the async generator function has the opportunity to do
        // any necessary setup in a predictable way. This predictability
        // is why the Promise constructor synchronously invokes its
        // executor callback, and why async functions synchronously
        // execute code before the first await. Since we implement simple
        // async functions in terms of async generators, it is especially
        // important to get this right, even though it requires care.
        previousPromise ? previousPromise.then(
          callInvokeWithMethodAndArg,
          // Avoid propagating failures to Promises returned by later
          // invocations of the iterator.
          callInvokeWithMethodAndArg
        ) : callInvokeWithMethodAndArg();
    }

    // Define the unified helper method that is used to implement .next,
    // .throw, and .return (see defineIteratorMethods).
    this._invoke = enqueue;
  }

  defineIteratorMethods(AsyncIterator.prototype);
  define(AsyncIterator.prototype, asyncIteratorSymbol, function () {
    return this;
  });
  exports.AsyncIterator = AsyncIterator;

  // Note that simple async functions are implemented on top of
  // AsyncIterator objects; they just return a Promise for the value of
  // the final result produced by the iterator.
  exports.async = function(innerFn, outerFn, self, tryLocsList, PromiseImpl) {
    if (PromiseImpl === void 0) PromiseImpl = Promise;

    var iter = new AsyncIterator(
      wrap(innerFn, outerFn, self, tryLocsList),
      PromiseImpl
    );

    return exports.isGeneratorFunction(outerFn)
      ? iter // If outerFn is a generator, return the full iterator.
      : iter.next().then(function(result) {
          return result.done ? result.value : iter.next();
        });
  };

  function makeInvokeMethod(innerFn, self, context) {
    var state = GenStateSuspendedStart;

    return function invoke(method, arg) {
      if (state === GenStateExecuting) {
        throw new Error("Generator is already running");
      }

      if (state === GenStateCompleted) {
        if (method === "throw") {
          throw arg;
        }

        // Be forgiving, per 25.3.3.3.3 of the spec:
        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
        return doneResult();
      }

      context.method = method;
      context.arg = arg;

      while (true) {
        var delegate = context.delegate;
        if (delegate) {
          var delegateResult = maybeInvokeDelegate(delegate, context);
          if (delegateResult) {
            if (delegateResult === ContinueSentinel) continue;
            return delegateResult;
          }
        }

        if (context.method === "next") {
          // Setting context._sent for legacy support of Babel's
          // function.sent implementation.
          context.sent = context._sent = context.arg;

        } else if (context.method === "throw") {
          if (state === GenStateSuspendedStart) {
            state = GenStateCompleted;
            throw context.arg;
          }

          context.dispatchException(context.arg);

        } else if (context.method === "return") {
          context.abrupt("return", context.arg);
        }

        state = GenStateExecuting;

        var record = tryCatch(innerFn, self, context);
        if (record.type === "normal") {
          // If an exception is thrown from innerFn, we leave state ===
          // GenStateExecuting and loop back for another invocation.
          state = context.done
            ? GenStateCompleted
            : GenStateSuspendedYield;

          if (record.arg === ContinueSentinel) {
            continue;
          }

          return {
            value: record.arg,
            done: context.done
          };

        } else if (record.type === "throw") {
          state = GenStateCompleted;
          // Dispatch the exception by looping back around to the
          // context.dispatchException(context.arg) call above.
          context.method = "throw";
          context.arg = record.arg;
        }
      }
    };
  }

  // Call delegate.iterator[context.method](context.arg) and handle the
  // result, either by returning a { value, done } result from the
  // delegate iterator, or by modifying context.method and context.arg,
  // setting context.delegate to null, and returning the ContinueSentinel.
  function maybeInvokeDelegate(delegate, context) {
    var method = delegate.iterator[context.method];
    if (method === undefined) {
      // A .throw or .return when the delegate iterator has no .throw
      // method always terminates the yield* loop.
      context.delegate = null;

      if (context.method === "throw") {
        // Note: ["return"] must be used for ES3 parsing compatibility.
        if (delegate.iterator["return"]) {
          // If the delegate iterator has a return method, give it a
          // chance to clean up.
          context.method = "return";
          context.arg = undefined;
          maybeInvokeDelegate(delegate, context);

          if (context.method === "throw") {
            // If maybeInvokeDelegate(context) changed context.method from
            // "return" to "throw", let that override the TypeError below.
            return ContinueSentinel;
          }
        }

        context.method = "throw";
        context.arg = new TypeError(
          "The iterator does not provide a 'throw' method");
      }

      return ContinueSentinel;
    }

    var record = tryCatch(method, delegate.iterator, context.arg);

    if (record.type === "throw") {
      context.method = "throw";
      context.arg = record.arg;
      context.delegate = null;
      return ContinueSentinel;
    }

    var info = record.arg;

    if (! info) {
      context.method = "throw";
      context.arg = new TypeError("iterator result is not an object");
      context.delegate = null;
      return ContinueSentinel;
    }

    if (info.done) {
      // Assign the result of the finished delegate to the temporary
      // variable specified by delegate.resultName (see delegateYield).
      context[delegate.resultName] = info.value;

      // Resume execution at the desired location (see delegateYield).
      context.next = delegate.nextLoc;

      // If context.method was "throw" but the delegate handled the
      // exception, let the outer generator proceed normally. If
      // context.method was "next", forget context.arg since it has been
      // "consumed" by the delegate iterator. If context.method was
      // "return", allow the original .return call to continue in the
      // outer generator.
      if (context.method !== "return") {
        context.method = "next";
        context.arg = undefined;
      }

    } else {
      // Re-yield the result returned by the delegate method.
      return info;
    }

    // The delegate iterator is finished, so forget it and continue with
    // the outer generator.
    context.delegate = null;
    return ContinueSentinel;
  }

  // Define Generator.prototype.{next,throw,return} in terms of the
  // unified ._invoke helper method.
  defineIteratorMethods(Gp);

  define(Gp, toStringTagSymbol, "Generator");

  // A Generator should always return itself as the iterator object when the
  // @@iterator function is called on it. Some browsers' implementations of the
  // iterator prototype chain incorrectly implement this, causing the Generator
  // object to not be returned from this call. This ensures that doesn't happen.
  // See https://github.com/facebook/regenerator/issues/274 for more details.
  define(Gp, iteratorSymbol, function() {
    return this;
  });

  define(Gp, "toString", function() {
    return "[object Generator]";
  });

  function pushTryEntry(locs) {
    var entry = { tryLoc: locs[0] };

    if (1 in locs) {
      entry.catchLoc = locs[1];
    }

    if (2 in locs) {
      entry.finallyLoc = locs[2];
      entry.afterLoc = locs[3];
    }

    this.tryEntries.push(entry);
  }

  function resetTryEntry(entry) {
    var record = entry.completion || {};
    record.type = "normal";
    delete record.arg;
    entry.completion = record;
  }

  function Context(tryLocsList) {
    // The root entry object (effectively a try statement without a catch
    // or a finally block) gives us a place to store values thrown from
    // locations where there is no enclosing try statement.
    this.tryEntries = [{ tryLoc: "root" }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
  }

  exports.keys = function(object) {
    var keys = [];
    for (var key in object) {
      keys.push(key);
    }
    keys.reverse();

    // Rather than returning an object with a next method, we keep
    // things simple and return the next function itself.
    return function next() {
      while (keys.length) {
        var key = keys.pop();
        if (key in object) {
          next.value = key;
          next.done = false;
          return next;
        }
      }

      // To avoid creating an additional object, we just hang the .value
      // and .done properties off the next function object itself. This
      // also ensures that the minifier will not anonymize the function.
      next.done = true;
      return next;
    };
  };

  function values(iterable) {
    if (iterable) {
      var iteratorMethod = iterable[iteratorSymbol];
      if (iteratorMethod) {
        return iteratorMethod.call(iterable);
      }

      if (typeof iterable.next === "function") {
        return iterable;
      }

      if (!isNaN(iterable.length)) {
        var i = -1, next = function next() {
          while (++i < iterable.length) {
            if (hasOwn.call(iterable, i)) {
              next.value = iterable[i];
              next.done = false;
              return next;
            }
          }

          next.value = undefined;
          next.done = true;

          return next;
        };

        return next.next = next;
      }
    }

    // Return an iterator with no values.
    return { next: doneResult };
  }
  exports.values = values;

  function doneResult() {
    return { value: undefined, done: true };
  }

  Context.prototype = {
    constructor: Context,

    reset: function(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      // Resetting context._sent for legacy support of Babel's
      // function.sent implementation.
      this.sent = this._sent = undefined;
      this.done = false;
      this.delegate = null;

      this.method = "next";
      this.arg = undefined;

      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          // Not sure about the optimal order of these conditions:
          if (name.charAt(0) === "t" &&
              hasOwn.call(this, name) &&
              !isNaN(+name.slice(1))) {
            this[name] = undefined;
          }
        }
      }
    },

    stop: function() {
      this.done = true;

      var rootEntry = this.tryEntries[0];
      var rootRecord = rootEntry.completion;
      if (rootRecord.type === "throw") {
        throw rootRecord.arg;
      }

      return this.rval;
    },

    dispatchException: function(exception) {
      if (this.done) {
        throw exception;
      }

      var context = this;
      function handle(loc, caught) {
        record.type = "throw";
        record.arg = exception;
        context.next = loc;

        if (caught) {
          // If the dispatched exception was caught by a catch block,
          // then let that catch block handle the exception normally.
          context.method = "next";
          context.arg = undefined;
        }

        return !! caught;
      }

      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        var record = entry.completion;

        if (entry.tryLoc === "root") {
          // Exception thrown outside of any try block that could handle
          // it, so set the completion value of the entire function to
          // throw the exception.
          return handle("end");
        }

        if (entry.tryLoc <= this.prev) {
          var hasCatch = hasOwn.call(entry, "catchLoc");
          var hasFinally = hasOwn.call(entry, "finallyLoc");

          if (hasCatch && hasFinally) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            } else if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            }

          } else if (hasFinally) {
            if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }

          } else {
            throw new Error("try statement without catch or finally");
          }
        }
      }
    },

    abrupt: function(type, arg) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc <= this.prev &&
            hasOwn.call(entry, "finallyLoc") &&
            this.prev < entry.finallyLoc) {
          var finallyEntry = entry;
          break;
        }
      }

      if (finallyEntry &&
          (type === "break" ||
           type === "continue") &&
          finallyEntry.tryLoc <= arg &&
          arg <= finallyEntry.finallyLoc) {
        // Ignore the finally entry if control is not jumping to a
        // location outside the try/catch block.
        finallyEntry = null;
      }

      var record = finallyEntry ? finallyEntry.completion : {};
      record.type = type;
      record.arg = arg;

      if (finallyEntry) {
        this.method = "next";
        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },

    complete: function(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
      }

      if (record.type === "break" ||
          record.type === "continue") {
        this.next = record.arg;
      } else if (record.type === "return") {
        this.rval = this.arg = record.arg;
        this.method = "return";
        this.next = "end";
      } else if (record.type === "normal" && afterLoc) {
        this.next = afterLoc;
      }

      return ContinueSentinel;
    },

    finish: function(finallyLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },

    "catch": function(tryLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;
          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }
          return thrown;
        }
      }

      // The context.catch method must only be called with a location
      // argument that corresponds to a known catch block.
      throw new Error("illegal catch attempt");
    },

    delegateYield: function(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        // Deliberately forget the last sent value so that we don't
        // accidentally pass it on to the delegate.
        this.arg = undefined;
      }

      return ContinueSentinel;
    }
  };

  // Regardless of whether this script is executing as a CommonJS module
  // or not, return the runtime object so that we can declare the variable
  // regeneratorRuntime in the outer scope, which allows this module to be
  // injected easily by `bin/regenerator --include-runtime script.js`.
  return exports;

}(
  // If this script is executing as a CommonJS module, use module.exports
  // as the regeneratorRuntime namespace. Otherwise create a new empty
  // object. Either way, the resulting object will be used to initialize
  // the regeneratorRuntime variable at the top of this file.
   true ? module.exports : undefined
));

try {
  regeneratorRuntime = runtime;
} catch (accidentalStrictMode) {
  // This module should not be running in strict mode, so the above
  // assignment should always work unless something is misconfigured. Just
  // in case runtime.js accidentally runs in strict mode, in modern engines
  // we can explicitly access globalThis. In older engines we can escape
  // strict mode using a global Function call. This could conceivably fail
  // if a Content Security Policy forbids using Function, but in that case
  // the proper solution is to fix the accidental strict mode problem. If
  // you've misconfigured your bundler to force strict mode and applied a
  // CSP to forbid Function, and you're not willing to fix either of those
  // problems, please detail your unique predicament in a GitHub issue.
  if (typeof globalThis === "object") {
    globalThis.regeneratorRuntime = runtime;
  } else {
    Function("r", "regeneratorRuntime = r")(runtime);
  }
}


/***/ }),

/***/ "62e4":
/***/ (function(module, exports) {

module.exports = function(module) {
	if (!module.webpackPolyfill) {
		module.deprecate = function() {};
		module.paths = [];
		// module.parent = undefined by default
		if (!module.children) module.children = [];
		Object.defineProperty(module, "loaded", {
			enumerable: true,
			get: function() {
				return module.l;
			}
		});
		Object.defineProperty(module, "id", {
			enumerable: true,
			get: function() {
				return module.i;
			}
		});
		module.webpackPolyfill = 1;
	}
	return module;
};


/***/ }),

/***/ "83a7":
/***/ (function(module, exports, __webpack_require__) {

var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;(function(root, factory) {
  if (true) {
    !(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
				__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
				(__WEBPACK_AMD_DEFINE_FACTORY__.apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__)) : __WEBPACK_AMD_DEFINE_FACTORY__),
				__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  } else {}
}(this, function() {
/**
 * Global dependencies.
 * @global {Object} document - DOM
 */

var devnull = function() {},
    bundleIdCache = {},
    bundleResultCache = {},
    bundleCallbackQueue = {};


/**
 * Subscribe to bundle load event.
 * @param {string[]} bundleIds - Bundle ids
 * @param {Function} callbackFn - The callback function
 */
function subscribe(bundleIds, callbackFn) {
  // listify
  bundleIds = bundleIds.push ? bundleIds : [bundleIds];

  var depsNotFound = [],
      i = bundleIds.length,
      numWaiting = i,
      fn,
      bundleId,
      r,
      q;

  // define callback function
  fn = function (bundleId, pathsNotFound) {
    if (pathsNotFound.length) depsNotFound.push(bundleId);

    numWaiting--;
    if (!numWaiting) callbackFn(depsNotFound);
  };

  // register callback
  while (i--) {
    bundleId = bundleIds[i];

    // execute callback if in result cache
    r = bundleResultCache[bundleId];
    if (r) {
      fn(bundleId, r);
      continue;
    }

    // add to callback queue
    q = bundleCallbackQueue[bundleId] = bundleCallbackQueue[bundleId] || [];
    q.push(fn);
  }
}


/**
 * Publish bundle load event.
 * @param {string} bundleId - Bundle id
 * @param {string[]} pathsNotFound - List of files not found
 */
function publish(bundleId, pathsNotFound) {
  // exit if id isn't defined
  if (!bundleId) return;

  var q = bundleCallbackQueue[bundleId];

  // cache result
  bundleResultCache[bundleId] = pathsNotFound;

  // exit if queue is empty
  if (!q) return;

  // empty callback queue
  while (q.length) {
    q[0](bundleId, pathsNotFound);
    q.splice(0, 1);
  }
}


/**
 * Execute callbacks.
 * @param {Object or Function} args - The callback args
 * @param {string[]} depsNotFound - List of dependencies not found
 */
function executeCallbacks(args, depsNotFound) {
  // accept function as argument
  if (args.call) args = {success: args};

  // success and error callbacks
  if (depsNotFound.length) (args.error || devnull)(depsNotFound);
  else (args.success || devnull)(args);
}


/**
 * Load individual file.
 * @param {string} path - The file path
 * @param {Function} callbackFn - The callback function
 */
function loadFile(path, callbackFn, args, numTries) {
  var doc = document,
      async = args.async,
      maxTries = (args.numRetries || 0) + 1,
      beforeCallbackFn = args.before || devnull,
      pathStripped = path.replace(/^(css|img)!/, ''),
      isLegacyIECss,
      e;

  numTries = numTries || 0;

  if (/(^css!|\.css$)/.test(path)) {
    // css
    e = doc.createElement('link');
    e.rel = 'stylesheet';
    e.href = pathStripped;

    // tag IE9+
    isLegacyIECss = 'hideFocus' in e;

    // use preload in IE Edge (to detect load errors)
    if (isLegacyIECss && e.relList) {
      isLegacyIECss = 0;
      e.rel = 'preload';
      e.as = 'style';
    }
  } else if (/(^img!|\.(png|gif|jpg|svg)$)/.test(path)) {
    // image
    e = doc.createElement('img');
    e.src = pathStripped;    
  } else {
    // javascript
    e = doc.createElement('script');
    e.src = path;
    e.async = async === undefined ? true : async;
  }

  e.onload = e.onerror = e.onbeforeload = function (ev) {
    var result = ev.type[0];

    // treat empty stylesheets as failures to get around lack of onerror
    // support in IE9-11
    if (isLegacyIECss) {
      try {
        if (!e.sheet.cssText.length) result = 'e';
      } catch (x) {
        // sheets objects created from load errors don't allow access to
        // `cssText` (unless error is Code:18 SecurityError)
        if (x.code != 18) result = 'e';
      }
    }

    // handle retries in case of load failure
    if (result == 'e') {
      // increment counter
      numTries += 1;

      // exit function and try again
      if (numTries < maxTries) {
        return loadFile(path, callbackFn, args, numTries);
      }
    } else if (e.rel == 'preload' && e.as == 'style') {
      // activate preloaded stylesheets
      return e.rel = 'stylesheet'; // jshint ignore:line
    }
    
    // execute callback
    callbackFn(path, result, ev.defaultPrevented);
  };

  // add to document (unless callback returns `false`)
  if (beforeCallbackFn(path, e) !== false) doc.head.appendChild(e);
}


/**
 * Load multiple files.
 * @param {string[]} paths - The file paths
 * @param {Function} callbackFn - The callback function
 */
function loadFiles(paths, callbackFn, args) {
  // listify paths
  paths = paths.push ? paths : [paths];

  var numWaiting = paths.length,
      x = numWaiting,
      pathsNotFound = [],
      fn,
      i;

  // define callback function
  fn = function(path, result, defaultPrevented) {
    // handle error
    if (result == 'e') pathsNotFound.push(path);

    // handle beforeload event. If defaultPrevented then that means the load
    // will be blocked (ex. Ghostery/ABP on Safari)
    if (result == 'b') {
      if (defaultPrevented) pathsNotFound.push(path);
      else return;
    }

    numWaiting--;
    if (!numWaiting) callbackFn(pathsNotFound);
  };

  // load scripts
  for (i=0; i < x; i++) loadFile(paths[i], fn, args);
}


/**
 * Initiate script load and register bundle.
 * @param {(string|string[])} paths - The file paths
 * @param {(string|Function|Object)} [arg1] - The (1) bundleId or (2) success
 *   callback or (3) object literal with success/error arguments, numRetries,
 *   etc.
 * @param {(Function|Object)} [arg2] - The (1) success callback or (2) object
 *   literal with success/error arguments, numRetries, etc.
 */
function loadjs(paths, arg1, arg2) {
  var bundleId,
      args;

  // bundleId (if string)
  if (arg1 && arg1.trim) bundleId = arg1;

  // args (default is {})
  args = (bundleId ? arg2 : arg1) || {};

  // throw error if bundle is already defined
  if (bundleId) {
    if (bundleId in bundleIdCache) {
      throw "LoadJS";
    } else {
      bundleIdCache[bundleId] = true;
    }
  }

  function loadFn(resolve, reject) {
    loadFiles(paths, function (pathsNotFound) {
      // execute callbacks
      executeCallbacks(args, pathsNotFound);
      
      // resolve Promise
      if (resolve) {
        executeCallbacks({success: resolve, error: reject}, pathsNotFound);
      }

      // publish bundle load event
      publish(bundleId, pathsNotFound);
    }, args);
  }
  
  if (args.returnPromise) return new Promise(loadFn);
  else loadFn();
}


/**
 * Execute callbacks when dependencies have been satisfied.
 * @param {(string|string[])} deps - List of bundle ids
 * @param {Object} args - success/error arguments
 */
loadjs.ready = function ready(deps, args) {
  // subscribe to bundle load event
  subscribe(deps, function (depsNotFound) {
    // execute callbacks
    executeCallbacks(args, depsNotFound);
  });

  return loadjs;
};


/**
 * Manually satisfy bundle dependencies.
 * @param {string} bundleId - The bundle id
 */
loadjs.done = function done(bundleId) {
  publish(bundleId, []);
};


/**
 * Reset loadjs dependencies statuses
 */
loadjs.reset = function reset() {
  bundleIdCache = {};
  bundleResultCache = {};
  bundleCallbackQueue = {};
};


/**
 * Determine if bundle has already been defined
 * @param String} bundleId - The bundle id
 */
loadjs.isDefined = function isDefined(bundleId) {
  return bundleId in bundleIdCache;
};


// export
return loadjs;

}));


/***/ }),

/***/ "9152":
/***/ (function(module, exports) {

/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
  var e, m
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var nBits = -7
  var i = isLE ? (nBytes - 1) : 0
  var d = isLE ? -1 : 1
  var s = buffer[offset + i]

  i += d

  e = s & ((1 << (-nBits)) - 1)
  s >>= (-nBits)
  nBits += eLen
  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  m = e & ((1 << (-nBits)) - 1)
  e >>= (-nBits)
  nBits += mLen
  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}

  if (e === 0) {
    e = 1 - eBias
  } else if (e === eMax) {
    return m ? NaN : ((s ? -1 : 1) * Infinity)
  } else {
    m = m + Math.pow(2, mLen)
    e = e - eBias
  }
  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}

exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
  var e, m, c
  var eLen = (nBytes * 8) - mLen - 1
  var eMax = (1 << eLen) - 1
  var eBias = eMax >> 1
  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
  var i = isLE ? 0 : (nBytes - 1)
  var d = isLE ? 1 : -1
  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0

  value = Math.abs(value)

  if (isNaN(value) || value === Infinity) {
    m = isNaN(value) ? 1 : 0
    e = eMax
  } else {
    e = Math.floor(Math.log(value) / Math.LN2)
    if (value * (c = Math.pow(2, -e)) < 1) {
      e--
      c *= 2
    }
    if (e + eBias >= 1) {
      value += rt / c
    } else {
      value += rt * Math.pow(2, 1 - eBias)
    }
    if (value * c >= 2) {
      e++
      c /= 2
    }

    if (e + eBias >= eMax) {
      m = 0
      e = eMax
    } else if (e + eBias >= 1) {
      m = ((value * c) - 1) * Math.pow(2, mLen)
      e = e + eBias
    } else {
      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
      e = 0
    }
  }

  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}

  e = (e << mLen) | m
  eLen += mLen
  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}

  buffer[offset + i - d] |= s * 128
}


/***/ }),

/***/ "92ce":
/***/ (function(module, exports, __webpack_require__) {

module.exports = __webpack_require__("5292");


/***/ }),

/***/ "b639":
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {/*!
 * The buffer module from node.js, for the browser.
 *
 * @author   Feross Aboukhadijeh <http://feross.org>
 * @license  MIT
 */
/* eslint-disable no-proto */



var base64 = __webpack_require__("1fb5")
var ieee754 = __webpack_require__("9152")
var isArray = __webpack_require__("e3db")

exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50

/**
 * If `Buffer.TYPED_ARRAY_SUPPORT`:
 *   === true    Use Uint8Array implementation (fastest)
 *   === false   Use Object implementation (most compatible, even IE6)
 *
 * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
 * Opera 11.6+, iOS 4.2+.
 *
 * Due to various browser bugs, sometimes the Object implementation will be used even
 * when the browser supports typed arrays.
 *
 * Note:
 *
 *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,
 *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.
 *
 *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.
 *
 *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of
 *     incorrect length in some situations.

 * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they
 * get the Object implementation, which is slower but behaves correctly.
 */
Buffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined
  ? global.TYPED_ARRAY_SUPPORT
  : typedArraySupport()

/*
 * Export kMaxLength after typed array support is determined.
 */
exports.kMaxLength = kMaxLength()

function typedArraySupport () {
  try {
    var arr = new Uint8Array(1)
    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}
    return arr.foo() === 42 && // typed array instances can be augmented
        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`
        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`
  } catch (e) {
    return false
  }
}

function kMaxLength () {
  return Buffer.TYPED_ARRAY_SUPPORT
    ? 0x7fffffff
    : 0x3fffffff
}

function createBuffer (that, length) {
  if (kMaxLength() < length) {
    throw new RangeError('Invalid typed array length')
  }
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = new Uint8Array(length)
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    if (that === null) {
      that = new Buffer(length)
    }
    that.length = length
  }

  return that
}

/**
 * The Buffer constructor returns instances of `Uint8Array` that have their
 * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
 * `Uint8Array`, so the returned instances will have all the node `Buffer` methods
 * and the `Uint8Array` methods. Square bracket notation works as expected -- it
 * returns a single octet.
 *
 * The `Uint8Array` prototype remains unmodified.
 */

function Buffer (arg, encodingOrOffset, length) {
  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {
    return new Buffer(arg, encodingOrOffset, length)
  }

  // Common case.
  if (typeof arg === 'number') {
    if (typeof encodingOrOffset === 'string') {
      throw new Error(
        'If encoding is specified then the first argument must be a string'
      )
    }
    return allocUnsafe(this, arg)
  }
  return from(this, arg, encodingOrOffset, length)
}

Buffer.poolSize = 8192 // not used by this implementation

// TODO: Legacy, not needed anymore. Remove in next major version.
Buffer._augment = function (arr) {
  arr.__proto__ = Buffer.prototype
  return arr
}

function from (that, value, encodingOrOffset, length) {
  if (typeof value === 'number') {
    throw new TypeError('"value" argument must not be a number')
  }

  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {
    return fromArrayBuffer(that, value, encodingOrOffset, length)
  }

  if (typeof value === 'string') {
    return fromString(that, value, encodingOrOffset)
  }

  return fromObject(that, value)
}

/**
 * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
 * if value is a number.
 * Buffer.from(str[, encoding])
 * Buffer.from(array)
 * Buffer.from(buffer)
 * Buffer.from(arrayBuffer[, byteOffset[, length]])
 **/
Buffer.from = function (value, encodingOrOffset, length) {
  return from(null, value, encodingOrOffset, length)
}

if (Buffer.TYPED_ARRAY_SUPPORT) {
  Buffer.prototype.__proto__ = Uint8Array.prototype
  Buffer.__proto__ = Uint8Array
  if (typeof Symbol !== 'undefined' && Symbol.species &&
      Buffer[Symbol.species] === Buffer) {
    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
    Object.defineProperty(Buffer, Symbol.species, {
      value: null,
      configurable: true
    })
  }
}

function assertSize (size) {
  if (typeof size !== 'number') {
    throw new TypeError('"size" argument must be a number')
  } else if (size < 0) {
    throw new RangeError('"size" argument must not be negative')
  }
}

function alloc (that, size, fill, encoding) {
  assertSize(size)
  if (size <= 0) {
    return createBuffer(that, size)
  }
  if (fill !== undefined) {
    // Only pay attention to encoding if it's a string. This
    // prevents accidentally sending in a number that would
    // be interpretted as a start offset.
    return typeof encoding === 'string'
      ? createBuffer(that, size).fill(fill, encoding)
      : createBuffer(that, size).fill(fill)
  }
  return createBuffer(that, size)
}

/**
 * Creates a new filled Buffer instance.
 * alloc(size[, fill[, encoding]])
 **/
Buffer.alloc = function (size, fill, encoding) {
  return alloc(null, size, fill, encoding)
}

function allocUnsafe (that, size) {
  assertSize(size)
  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) {
    for (var i = 0; i < size; ++i) {
      that[i] = 0
    }
  }
  return that
}

/**
 * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
 * */
Buffer.allocUnsafe = function (size) {
  return allocUnsafe(null, size)
}
/**
 * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
 */
Buffer.allocUnsafeSlow = function (size) {
  return allocUnsafe(null, size)
}

function fromString (that, string, encoding) {
  if (typeof encoding !== 'string' || encoding === '') {
    encoding = 'utf8'
  }

  if (!Buffer.isEncoding(encoding)) {
    throw new TypeError('"encoding" must be a valid string encoding')
  }

  var length = byteLength(string, encoding) | 0
  that = createBuffer(that, length)

  var actual = that.write(string, encoding)

  if (actual !== length) {
    // Writing a hex string, for example, that contains invalid characters will
    // cause everything after the first invalid character to be ignored. (e.g.
    // 'abxxcd' will be treated as 'ab')
    that = that.slice(0, actual)
  }

  return that
}

function fromArrayLike (that, array) {
  var length = array.length < 0 ? 0 : checked(array.length) | 0
  that = createBuffer(that, length)
  for (var i = 0; i < length; i += 1) {
    that[i] = array[i] & 255
  }
  return that
}

function fromArrayBuffer (that, array, byteOffset, length) {
  array.byteLength // this throws if `array` is not a valid ArrayBuffer

  if (byteOffset < 0 || array.byteLength < byteOffset) {
    throw new RangeError('\'offset\' is out of bounds')
  }

  if (array.byteLength < byteOffset + (length || 0)) {
    throw new RangeError('\'length\' is out of bounds')
  }

  if (byteOffset === undefined && length === undefined) {
    array = new Uint8Array(array)
  } else if (length === undefined) {
    array = new Uint8Array(array, byteOffset)
  } else {
    array = new Uint8Array(array, byteOffset, length)
  }

  if (Buffer.TYPED_ARRAY_SUPPORT) {
    // Return an augmented `Uint8Array` instance, for best performance
    that = array
    that.__proto__ = Buffer.prototype
  } else {
    // Fallback: Return an object instance of the Buffer class
    that = fromArrayLike(that, array)
  }
  return that
}

function fromObject (that, obj) {
  if (Buffer.isBuffer(obj)) {
    var len = checked(obj.length) | 0
    that = createBuffer(that, len)

    if (that.length === 0) {
      return that
    }

    obj.copy(that, 0, 0, len)
    return that
  }

  if (obj) {
    if ((typeof ArrayBuffer !== 'undefined' &&
        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {
      if (typeof obj.length !== 'number' || isnan(obj.length)) {
        return createBuffer(that, 0)
      }
      return fromArrayLike(that, obj)
    }

    if (obj.type === 'Buffer' && isArray(obj.data)) {
      return fromArrayLike(that, obj.data)
    }
  }

  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')
}

function checked (length) {
  // Note: cannot use `length < kMaxLength()` here because that fails when
  // length is NaN (which is otherwise coerced to zero.)
  if (length >= kMaxLength()) {
    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
                         'size: 0x' + kMaxLength().toString(16) + ' bytes')
  }
  return length | 0
}

function SlowBuffer (length) {
  if (+length != length) { // eslint-disable-line eqeqeq
    length = 0
  }
  return Buffer.alloc(+length)
}

Buffer.isBuffer = function isBuffer (b) {
  return !!(b != null && b._isBuffer)
}

Buffer.compare = function compare (a, b) {
  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
    throw new TypeError('Arguments must be Buffers')
  }

  if (a === b) return 0

  var x = a.length
  var y = b.length

  for (var i = 0, len = Math.min(x, y); i < len; ++i) {
    if (a[i] !== b[i]) {
      x = a[i]
      y = b[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

Buffer.isEncoding = function isEncoding (encoding) {
  switch (String(encoding).toLowerCase()) {
    case 'hex':
    case 'utf8':
    case 'utf-8':
    case 'ascii':
    case 'latin1':
    case 'binary':
    case 'base64':
    case 'ucs2':
    case 'ucs-2':
    case 'utf16le':
    case 'utf-16le':
      return true
    default:
      return false
  }
}

Buffer.concat = function concat (list, length) {
  if (!isArray(list)) {
    throw new TypeError('"list" argument must be an Array of Buffers')
  }

  if (list.length === 0) {
    return Buffer.alloc(0)
  }

  var i
  if (length === undefined) {
    length = 0
    for (i = 0; i < list.length; ++i) {
      length += list[i].length
    }
  }

  var buffer = Buffer.allocUnsafe(length)
  var pos = 0
  for (i = 0; i < list.length; ++i) {
    var buf = list[i]
    if (!Buffer.isBuffer(buf)) {
      throw new TypeError('"list" argument must be an Array of Buffers')
    }
    buf.copy(buffer, pos)
    pos += buf.length
  }
  return buffer
}

function byteLength (string, encoding) {
  if (Buffer.isBuffer(string)) {
    return string.length
  }
  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&
      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {
    return string.byteLength
  }
  if (typeof string !== 'string') {
    string = '' + string
  }

  var len = string.length
  if (len === 0) return 0

  // Use a for loop to avoid recursion
  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'ascii':
      case 'latin1':
      case 'binary':
        return len
      case 'utf8':
      case 'utf-8':
      case undefined:
        return utf8ToBytes(string).length
      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return len * 2
      case 'hex':
        return len >>> 1
      case 'base64':
        return base64ToBytes(string).length
      default:
        if (loweredCase) return utf8ToBytes(string).length // assume utf8
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}
Buffer.byteLength = byteLength

function slowToString (encoding, start, end) {
  var loweredCase = false

  // No need to verify that "this.length <= MAX_UINT32" since it's a read-only
  // property of a typed array.

  // This behaves neither like String nor Uint8Array in that we set start/end
  // to their upper/lower bounds if the value passed is out of range.
  // undefined is handled specially as per ECMA-262 6th Edition,
  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
  if (start === undefined || start < 0) {
    start = 0
  }
  // Return early if start > this.length. Done here to prevent potential uint32
  // coercion fail below.
  if (start > this.length) {
    return ''
  }

  if (end === undefined || end > this.length) {
    end = this.length
  }

  if (end <= 0) {
    return ''
  }

  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.
  end >>>= 0
  start >>>= 0

  if (end <= start) {
    return ''
  }

  if (!encoding) encoding = 'utf8'

  while (true) {
    switch (encoding) {
      case 'hex':
        return hexSlice(this, start, end)

      case 'utf8':
      case 'utf-8':
        return utf8Slice(this, start, end)

      case 'ascii':
        return asciiSlice(this, start, end)

      case 'latin1':
      case 'binary':
        return latin1Slice(this, start, end)

      case 'base64':
        return base64Slice(this, start, end)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return utf16leSlice(this, start, end)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = (encoding + '').toLowerCase()
        loweredCase = true
    }
  }
}

// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect
// Buffer instances.
Buffer.prototype._isBuffer = true

function swap (b, n, m) {
  var i = b[n]
  b[n] = b[m]
  b[m] = i
}

Buffer.prototype.swap16 = function swap16 () {
  var len = this.length
  if (len % 2 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 16-bits')
  }
  for (var i = 0; i < len; i += 2) {
    swap(this, i, i + 1)
  }
  return this
}

Buffer.prototype.swap32 = function swap32 () {
  var len = this.length
  if (len % 4 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 32-bits')
  }
  for (var i = 0; i < len; i += 4) {
    swap(this, i, i + 3)
    swap(this, i + 1, i + 2)
  }
  return this
}

Buffer.prototype.swap64 = function swap64 () {
  var len = this.length
  if (len % 8 !== 0) {
    throw new RangeError('Buffer size must be a multiple of 64-bits')
  }
  for (var i = 0; i < len; i += 8) {
    swap(this, i, i + 7)
    swap(this, i + 1, i + 6)
    swap(this, i + 2, i + 5)
    swap(this, i + 3, i + 4)
  }
  return this
}

Buffer.prototype.toString = function toString () {
  var length = this.length | 0
  if (length === 0) return ''
  if (arguments.length === 0) return utf8Slice(this, 0, length)
  return slowToString.apply(this, arguments)
}

Buffer.prototype.equals = function equals (b) {
  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
  if (this === b) return true
  return Buffer.compare(this, b) === 0
}

Buffer.prototype.inspect = function inspect () {
  var str = ''
  var max = exports.INSPECT_MAX_BYTES
  if (this.length > 0) {
    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')
    if (this.length > max) str += ' ... '
  }
  return '<Buffer ' + str + '>'
}

Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
  if (!Buffer.isBuffer(target)) {
    throw new TypeError('Argument must be a Buffer')
  }

  if (start === undefined) {
    start = 0
  }
  if (end === undefined) {
    end = target ? target.length : 0
  }
  if (thisStart === undefined) {
    thisStart = 0
  }
  if (thisEnd === undefined) {
    thisEnd = this.length
  }

  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
    throw new RangeError('out of range index')
  }

  if (thisStart >= thisEnd && start >= end) {
    return 0
  }
  if (thisStart >= thisEnd) {
    return -1
  }
  if (start >= end) {
    return 1
  }

  start >>>= 0
  end >>>= 0
  thisStart >>>= 0
  thisEnd >>>= 0

  if (this === target) return 0

  var x = thisEnd - thisStart
  var y = end - start
  var len = Math.min(x, y)

  var thisCopy = this.slice(thisStart, thisEnd)
  var targetCopy = target.slice(start, end)

  for (var i = 0; i < len; ++i) {
    if (thisCopy[i] !== targetCopy[i]) {
      x = thisCopy[i]
      y = targetCopy[i]
      break
    }
  }

  if (x < y) return -1
  if (y < x) return 1
  return 0
}

// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
  // Empty buffer means no match
  if (buffer.length === 0) return -1

  // Normalize byteOffset
  if (typeof byteOffset === 'string') {
    encoding = byteOffset
    byteOffset = 0
  } else if (byteOffset > 0x7fffffff) {
    byteOffset = 0x7fffffff
  } else if (byteOffset < -0x80000000) {
    byteOffset = -0x80000000
  }
  byteOffset = +byteOffset  // Coerce to Number.
  if (isNaN(byteOffset)) {
    // byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
    byteOffset = dir ? 0 : (buffer.length - 1)
  }

  // Normalize byteOffset: negative offsets start from the end of the buffer
  if (byteOffset < 0) byteOffset = buffer.length + byteOffset
  if (byteOffset >= buffer.length) {
    if (dir) return -1
    else byteOffset = buffer.length - 1
  } else if (byteOffset < 0) {
    if (dir) byteOffset = 0
    else return -1
  }

  // Normalize val
  if (typeof val === 'string') {
    val = Buffer.from(val, encoding)
  }

  // Finally, search either indexOf (if dir is true) or lastIndexOf
  if (Buffer.isBuffer(val)) {
    // Special case: looking for empty string/buffer always fails
    if (val.length === 0) {
      return -1
    }
    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
  } else if (typeof val === 'number') {
    val = val & 0xFF // Search for a byte value [0-255]
    if (Buffer.TYPED_ARRAY_SUPPORT &&
        typeof Uint8Array.prototype.indexOf === 'function') {
      if (dir) {
        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
      } else {
        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
      }
    }
    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
  }

  throw new TypeError('val must be string, number or Buffer')
}

function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
  var indexSize = 1
  var arrLength = arr.length
  var valLength = val.length

  if (encoding !== undefined) {
    encoding = String(encoding).toLowerCase()
    if (encoding === 'ucs2' || encoding === 'ucs-2' ||
        encoding === 'utf16le' || encoding === 'utf-16le') {
      if (arr.length < 2 || val.length < 2) {
        return -1
      }
      indexSize = 2
      arrLength /= 2
      valLength /= 2
      byteOffset /= 2
    }
  }

  function read (buf, i) {
    if (indexSize === 1) {
      return buf[i]
    } else {
      return buf.readUInt16BE(i * indexSize)
    }
  }

  var i
  if (dir) {
    var foundIndex = -1
    for (i = byteOffset; i < arrLength; i++) {
      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
        if (foundIndex === -1) foundIndex = i
        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
      } else {
        if (foundIndex !== -1) i -= i - foundIndex
        foundIndex = -1
      }
    }
  } else {
    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
    for (i = byteOffset; i >= 0; i--) {
      var found = true
      for (var j = 0; j < valLength; j++) {
        if (read(arr, i + j) !== read(val, j)) {
          found = false
          break
        }
      }
      if (found) return i
    }
  }

  return -1
}

Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
  return this.indexOf(val, byteOffset, encoding) !== -1
}

Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}

Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}

function hexWrite (buf, string, offset, length) {
  offset = Number(offset) || 0
  var remaining = buf.length - offset
  if (!length) {
    length = remaining
  } else {
    length = Number(length)
    if (length > remaining) {
      length = remaining
    }
  }

  // must be an even number of digits
  var strLen = string.length
  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')

  if (length > strLen / 2) {
    length = strLen / 2
  }
  for (var i = 0; i < length; ++i) {
    var parsed = parseInt(string.substr(i * 2, 2), 16)
    if (isNaN(parsed)) return i
    buf[offset + i] = parsed
  }
  return i
}

function utf8Write (buf, string, offset, length) {
  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}

function asciiWrite (buf, string, offset, length) {
  return blitBuffer(asciiToBytes(string), buf, offset, length)
}

function latin1Write (buf, string, offset, length) {
  return asciiWrite(buf, string, offset, length)
}

function base64Write (buf, string, offset, length) {
  return blitBuffer(base64ToBytes(string), buf, offset, length)
}

function ucs2Write (buf, string, offset, length) {
  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}

Buffer.prototype.write = function write (string, offset, length, encoding) {
  // Buffer#write(string)
  if (offset === undefined) {
    encoding = 'utf8'
    length = this.length
    offset = 0
  // Buffer#write(string, encoding)
  } else if (length === undefined && typeof offset === 'string') {
    encoding = offset
    length = this.length
    offset = 0
  // Buffer#write(string, offset[, length][, encoding])
  } else if (isFinite(offset)) {
    offset = offset | 0
    if (isFinite(length)) {
      length = length | 0
      if (encoding === undefined) encoding = 'utf8'
    } else {
      encoding = length
      length = undefined
    }
  // legacy write(string, encoding, offset, length) - remove in v0.13
  } else {
    throw new Error(
      'Buffer.write(string, encoding, offset[, length]) is no longer supported'
    )
  }

  var remaining = this.length - offset
  if (length === undefined || length > remaining) length = remaining

  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
    throw new RangeError('Attempt to write outside buffer bounds')
  }

  if (!encoding) encoding = 'utf8'

  var loweredCase = false
  for (;;) {
    switch (encoding) {
      case 'hex':
        return hexWrite(this, string, offset, length)

      case 'utf8':
      case 'utf-8':
        return utf8Write(this, string, offset, length)

      case 'ascii':
        return asciiWrite(this, string, offset, length)

      case 'latin1':
      case 'binary':
        return latin1Write(this, string, offset, length)

      case 'base64':
        // Warning: maxLength not taken into account in base64Write
        return base64Write(this, string, offset, length)

      case 'ucs2':
      case 'ucs-2':
      case 'utf16le':
      case 'utf-16le':
        return ucs2Write(this, string, offset, length)

      default:
        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
        encoding = ('' + encoding).toLowerCase()
        loweredCase = true
    }
  }
}

Buffer.prototype.toJSON = function toJSON () {
  return {
    type: 'Buffer',
    data: Array.prototype.slice.call(this._arr || this, 0)
  }
}

function base64Slice (buf, start, end) {
  if (start === 0 && end === buf.length) {
    return base64.fromByteArray(buf)
  } else {
    return base64.fromByteArray(buf.slice(start, end))
  }
}

function utf8Slice (buf, start, end) {
  end = Math.min(buf.length, end)
  var res = []

  var i = start
  while (i < end) {
    var firstByte = buf[i]
    var codePoint = null
    var bytesPerSequence = (firstByte > 0xEF) ? 4
      : (firstByte > 0xDF) ? 3
      : (firstByte > 0xBF) ? 2
      : 1

    if (i + bytesPerSequence <= end) {
      var secondByte, thirdByte, fourthByte, tempCodePoint

      switch (bytesPerSequence) {
        case 1:
          if (firstByte < 0x80) {
            codePoint = firstByte
          }
          break
        case 2:
          secondByte = buf[i + 1]
          if ((secondByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
            if (tempCodePoint > 0x7F) {
              codePoint = tempCodePoint
            }
          }
          break
        case 3:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
              codePoint = tempCodePoint
            }
          }
          break
        case 4:
          secondByte = buf[i + 1]
          thirdByte = buf[i + 2]
          fourthByte = buf[i + 3]
          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
              codePoint = tempCodePoint
            }
          }
      }
    }

    if (codePoint === null) {
      // we did not generate a valid codePoint so insert a
      // replacement char (U+FFFD) and advance only 1 byte
      codePoint = 0xFFFD
      bytesPerSequence = 1
    } else if (codePoint > 0xFFFF) {
      // encode to utf16 (surrogate pair dance)
      codePoint -= 0x10000
      res.push(codePoint >>> 10 & 0x3FF | 0xD800)
      codePoint = 0xDC00 | codePoint & 0x3FF
    }

    res.push(codePoint)
    i += bytesPerSequence
  }

  return decodeCodePointsArray(res)
}

// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000

function decodeCodePointsArray (codePoints) {
  var len = codePoints.length
  if (len <= MAX_ARGUMENTS_LENGTH) {
    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
  }

  // Decode in chunks to avoid "call stack size exceeded".
  var res = ''
  var i = 0
  while (i < len) {
    res += String.fromCharCode.apply(
      String,
      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
    )
  }
  return res
}

function asciiSlice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i] & 0x7F)
  }
  return ret
}

function latin1Slice (buf, start, end) {
  var ret = ''
  end = Math.min(buf.length, end)

  for (var i = start; i < end; ++i) {
    ret += String.fromCharCode(buf[i])
  }
  return ret
}

function hexSlice (buf, start, end) {
  var len = buf.length

  if (!start || start < 0) start = 0
  if (!end || end < 0 || end > len) end = len

  var out = ''
  for (var i = start; i < end; ++i) {
    out += toHex(buf[i])
  }
  return out
}

function utf16leSlice (buf, start, end) {
  var bytes = buf.slice(start, end)
  var res = ''
  for (var i = 0; i < bytes.length; i += 2) {
    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)
  }
  return res
}

Buffer.prototype.slice = function slice (start, end) {
  var len = this.length
  start = ~~start
  end = end === undefined ? len : ~~end

  if (start < 0) {
    start += len
    if (start < 0) start = 0
  } else if (start > len) {
    start = len
  }

  if (end < 0) {
    end += len
    if (end < 0) end = 0
  } else if (end > len) {
    end = len
  }

  if (end < start) end = start

  var newBuf
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    newBuf = this.subarray(start, end)
    newBuf.__proto__ = Buffer.prototype
  } else {
    var sliceLen = end - start
    newBuf = new Buffer(sliceLen, undefined)
    for (var i = 0; i < sliceLen; ++i) {
      newBuf[i] = this[i + start]
    }
  }

  return newBuf
}

/*
 * Need to make sure that buffer isn't trying to write out of bounds.
 */
function checkOffset (offset, ext, length) {
  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}

Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }

  return val
}

Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    checkOffset(offset, byteLength, this.length)
  }

  var val = this[offset + --byteLength]
  var mul = 1
  while (byteLength > 0 && (mul *= 0x100)) {
    val += this[offset + --byteLength] * mul
  }

  return val
}

Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  return this[offset]
}

Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return this[offset] | (this[offset + 1] << 8)
}

Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  return (this[offset] << 8) | this[offset + 1]
}

Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return ((this[offset]) |
      (this[offset + 1] << 8) |
      (this[offset + 2] << 16)) +
      (this[offset + 3] * 0x1000000)
}

Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] * 0x1000000) +
    ((this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    this[offset + 3])
}

Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var val = this[offset]
  var mul = 1
  var i = 0
  while (++i < byteLength && (mul *= 0x100)) {
    val += this[offset + i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) checkOffset(offset, byteLength, this.length)

  var i = byteLength
  var mul = 1
  var val = this[offset + --i]
  while (i > 0 && (mul *= 0x100)) {
    val += this[offset + --i] * mul
  }
  mul *= 0x80

  if (val >= mul) val -= Math.pow(2, 8 * byteLength)

  return val
}

Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 1, this.length)
  if (!(this[offset] & 0x80)) return (this[offset])
  return ((0xff - this[offset] + 1) * -1)
}

Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset] | (this[offset + 1] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 2, this.length)
  var val = this[offset + 1] | (this[offset] << 8)
  return (val & 0x8000) ? val | 0xFFFF0000 : val
}

Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset]) |
    (this[offset + 1] << 8) |
    (this[offset + 2] << 16) |
    (this[offset + 3] << 24)
}

Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)

  return (this[offset] << 24) |
    (this[offset + 1] << 16) |
    (this[offset + 2] << 8) |
    (this[offset + 3])
}

Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, true, 23, 4)
}

Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 4, this.length)
  return ieee754.read(this, offset, false, 23, 4)
}

Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, true, 52, 8)
}

Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
  if (!noAssert) checkOffset(offset, 8, this.length)
  return ieee754.read(this, offset, false, 52, 8)
}

function checkInt (buf, value, offset, ext, max, min) {
  if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
  if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
}

Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var mul = 1
  var i = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  byteLength = byteLength | 0
  if (!noAssert) {
    var maxBytes = Math.pow(2, 8 * byteLength) - 1
    checkInt(this, value, offset, byteLength, maxBytes, 0)
  }

  var i = byteLength - 1
  var mul = 1
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    this[offset + i] = (value / mul) & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  this[offset] = (value & 0xff)
  return offset + 1
}

function objectWriteUInt16 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {
    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>
      (littleEndian ? i : 1 - i) * 8
  }
}

Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

function objectWriteUInt32 (buf, value, offset, littleEndian) {
  if (value < 0) value = 0xffffffff + value + 1
  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {
    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff
  }
}

Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset + 3] = (value >>> 24)
    this[offset + 2] = (value >>> 16)
    this[offset + 1] = (value >>> 8)
    this[offset] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = 0
  var mul = 1
  var sub = 0
  this[offset] = value & 0xFF
  while (++i < byteLength && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) {
    var limit = Math.pow(2, 8 * byteLength - 1)

    checkInt(this, value, offset, byteLength, limit - 1, -limit)
  }

  var i = byteLength - 1
  var mul = 1
  var sub = 0
  this[offset + i] = value & 0xFF
  while (--i >= 0 && (mul *= 0x100)) {
    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
      sub = 1
    }
    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
  }

  return offset + byteLength
}

Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)
  if (value < 0) value = 0xff + value + 1
  this[offset] = (value & 0xff)
  return offset + 1
}

Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
  } else {
    objectWriteUInt16(this, value, offset, true)
  }
  return offset + 2
}

Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 8)
    this[offset + 1] = (value & 0xff)
  } else {
    objectWriteUInt16(this, value, offset, false)
  }
  return offset + 2
}

Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value & 0xff)
    this[offset + 1] = (value >>> 8)
    this[offset + 2] = (value >>> 16)
    this[offset + 3] = (value >>> 24)
  } else {
    objectWriteUInt32(this, value, offset, true)
  }
  return offset + 4
}

Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
  value = +value
  offset = offset | 0
  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
  if (value < 0) value = 0xffffffff + value + 1
  if (Buffer.TYPED_ARRAY_SUPPORT) {
    this[offset] = (value >>> 24)
    this[offset + 1] = (value >>> 16)
    this[offset + 2] = (value >>> 8)
    this[offset + 3] = (value & 0xff)
  } else {
    objectWriteUInt32(this, value, offset, false)
  }
  return offset + 4
}

function checkIEEE754 (buf, value, offset, ext, max, min) {
  if (offset + ext > buf.length) throw new RangeError('Index out of range')
  if (offset < 0) throw new RangeError('Index out of range')
}

function writeFloat (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
  }
  ieee754.write(buf, value, offset, littleEndian, 23, 4)
  return offset + 4
}

Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
  return writeFloat(this, value, offset, true, noAssert)
}

Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
  return writeFloat(this, value, offset, false, noAssert)
}

function writeDouble (buf, value, offset, littleEndian, noAssert) {
  if (!noAssert) {
    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
  }
  ieee754.write(buf, value, offset, littleEndian, 52, 8)
  return offset + 8
}

Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
  return writeDouble(this, value, offset, true, noAssert)
}

Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
  return writeDouble(this, value, offset, false, noAssert)
}

// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
  if (!start) start = 0
  if (!end && end !== 0) end = this.length
  if (targetStart >= target.length) targetStart = target.length
  if (!targetStart) targetStart = 0
  if (end > 0 && end < start) end = start

  // Copy 0 bytes; we're done
  if (end === start) return 0
  if (target.length === 0 || this.length === 0) return 0

  // Fatal error conditions
  if (targetStart < 0) {
    throw new RangeError('targetStart out of bounds')
  }
  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')
  if (end < 0) throw new RangeError('sourceEnd out of bounds')

  // Are we oob?
  if (end > this.length) end = this.length
  if (target.length - targetStart < end - start) {
    end = target.length - targetStart + start
  }

  var len = end - start
  var i

  if (this === target && start < targetStart && targetStart < end) {
    // descending copy from end
    for (i = len - 1; i >= 0; --i) {
      target[i + targetStart] = this[i + start]
    }
  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {
    // ascending copy from start
    for (i = 0; i < len; ++i) {
      target[i + targetStart] = this[i + start]
    }
  } else {
    Uint8Array.prototype.set.call(
      target,
      this.subarray(start, start + len),
      targetStart
    )
  }

  return len
}

// Usage:
//    buffer.fill(number[, offset[, end]])
//    buffer.fill(buffer[, offset[, end]])
//    buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
  // Handle string cases:
  if (typeof val === 'string') {
    if (typeof start === 'string') {
      encoding = start
      start = 0
      end = this.length
    } else if (typeof end === 'string') {
      encoding = end
      end = this.length
    }
    if (val.length === 1) {
      var code = val.charCodeAt(0)
      if (code < 256) {
        val = code
      }
    }
    if (encoding !== undefined && typeof encoding !== 'string') {
      throw new TypeError('encoding must be a string')
    }
    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
      throw new TypeError('Unknown encoding: ' + encoding)
    }
  } else if (typeof val === 'number') {
    val = val & 255
  }

  // Invalid ranges are not set to a default, so can range check early.
  if (start < 0 || this.length < start || this.length < end) {
    throw new RangeError('Out of range index')
  }

  if (end <= start) {
    return this
  }

  start = start >>> 0
  end = end === undefined ? this.length : end >>> 0

  if (!val) val = 0

  var i
  if (typeof val === 'number') {
    for (i = start; i < end; ++i) {
      this[i] = val
    }
  } else {
    var bytes = Buffer.isBuffer(val)
      ? val
      : utf8ToBytes(new Buffer(val, encoding).toString())
    var len = bytes.length
    for (i = 0; i < end - start; ++i) {
      this[i + start] = bytes[i % len]
    }
  }

  return this
}

// HELPER FUNCTIONS
// ================

var INVALID_BASE64_RE = /[^+\/0-9A-Za-z-_]/g

function base64clean (str) {
  // Node strips out invalid characters like \n and \t from the string, base64-js does not
  str = stringtrim(str).replace(INVALID_BASE64_RE, '')
  // Node converts strings with length < 2 to ''
  if (str.length < 2) return ''
  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
  while (str.length % 4 !== 0) {
    str = str + '='
  }
  return str
}

function stringtrim (str) {
  if (str.trim) return str.trim()
  return str.replace(/^\s+|\s+$/g, '')
}

function toHex (n) {
  if (n < 16) return '0' + n.toString(16)
  return n.toString(16)
}

function utf8ToBytes (string, units) {
  units = units || Infinity
  var codePoint
  var length = string.length
  var leadSurrogate = null
  var bytes = []

  for (var i = 0; i < length; ++i) {
    codePoint = string.charCodeAt(i)

    // is surrogate component
    if (codePoint > 0xD7FF && codePoint < 0xE000) {
      // last char was a lead
      if (!leadSurrogate) {
        // no lead yet
        if (codePoint > 0xDBFF) {
          // unexpected trail
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        } else if (i + 1 === length) {
          // unpaired lead
          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
          continue
        }

        // valid lead
        leadSurrogate = codePoint

        continue
      }

      // 2 leads in a row
      if (codePoint < 0xDC00) {
        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
        leadSurrogate = codePoint
        continue
      }

      // valid surrogate pair
      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
    } else if (leadSurrogate) {
      // valid bmp char, but last char was a lead
      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
    }

    leadSurrogate = null

    // encode utf8
    if (codePoint < 0x80) {
      if ((units -= 1) < 0) break
      bytes.push(codePoint)
    } else if (codePoint < 0x800) {
      if ((units -= 2) < 0) break
      bytes.push(
        codePoint >> 0x6 | 0xC0,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x10000) {
      if ((units -= 3) < 0) break
      bytes.push(
        codePoint >> 0xC | 0xE0,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else if (codePoint < 0x110000) {
      if ((units -= 4) < 0) break
      bytes.push(
        codePoint >> 0x12 | 0xF0,
        codePoint >> 0xC & 0x3F | 0x80,
        codePoint >> 0x6 & 0x3F | 0x80,
        codePoint & 0x3F | 0x80
      )
    } else {
      throw new Error('Invalid code point')
    }
  }

  return bytes
}

function asciiToBytes (str) {
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    // Node's code seems to be doing this and not & 0x7F..
    byteArray.push(str.charCodeAt(i) & 0xFF)
  }
  return byteArray
}

function utf16leToBytes (str, units) {
  var c, hi, lo
  var byteArray = []
  for (var i = 0; i < str.length; ++i) {
    if ((units -= 2) < 0) break

    c = str.charCodeAt(i)
    hi = c >> 8
    lo = c % 256
    byteArray.push(lo)
    byteArray.push(hi)
  }

  return byteArray
}

function base64ToBytes (str) {
  return base64.toByteArray(base64clean(str))
}

function blitBuffer (src, dst, offset, length) {
  for (var i = 0; i < length; ++i) {
    if ((i + offset >= dst.length) || (i >= src.length)) break
    dst[i + offset] = src[i]
  }
  return i
}

function isnan (val) {
  return val !== val // eslint-disable-line no-self-compare
}

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__("c8ba")))

/***/ }),

/***/ "b997":
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(Buffer) {!function(root, factory) {
     true ? module.exports = factory() : undefined;
}("undefined" != typeof self ? self : this, (function() {
    return function(modules) {
        var installedModules = {};
        function __webpack_require__(moduleId) {
            if (installedModules[moduleId]) return installedModules[moduleId].exports;
            var module = installedModules[moduleId] = {
                i: moduleId,
                l: !1,
                exports: {}
            };
            modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
            module.l = !0;
            return module.exports;
        }
        __webpack_require__.m = modules;
        __webpack_require__.c = installedModules;
        __webpack_require__.d = function(exports, name, getter) {
            __webpack_require__.o(exports, name) || Object.defineProperty(exports, name, {
                enumerable: !0,
                get: getter
            });
        };
        __webpack_require__.r = function(exports) {
            "undefined" != typeof Symbol && Symbol.toStringTag && Object.defineProperty(exports, Symbol.toStringTag, {
                value: "Module"
            });
            Object.defineProperty(exports, "__esModule", {
                value: !0
            });
        };
        __webpack_require__.t = function(value, mode) {
            1 & mode && (value = __webpack_require__(value));
            if (8 & mode) return value;
            if (4 & mode && "object" == typeof value && value && value.__esModule) return value;
            var ns = Object.create(null);
            __webpack_require__.r(ns);
            Object.defineProperty(ns, "default", {
                enumerable: !0,
                value: value
            });
            if (2 & mode && "string" != typeof value) for (var key in value) __webpack_require__.d(ns, key, function(key) {
                return value[key];
            }.bind(null, key));
            return ns;
        };
        __webpack_require__.n = function(module) {
            var getter = module && module.__esModule ? function() {
                return module.default;
            } : function() {
                return module;
            };
            __webpack_require__.d(getter, "a", getter);
            return getter;
        };
        __webpack_require__.o = function(object, property) {
            return {}.hasOwnProperty.call(object, property);
        };
        __webpack_require__.p = "";
        return __webpack_require__(__webpack_require__.s = 0);
    }([ function(module, __webpack_exports__, __webpack_require__) {
        "use strict";
        __webpack_require__.r(__webpack_exports__);
        __webpack_require__.d(__webpack_exports__, "PopupOpenError", (function() {
            return dom_PopupOpenError;
        }));
        __webpack_require__.d(__webpack_exports__, "create", (function() {
            return component_create;
        }));
        __webpack_require__.d(__webpack_exports__, "destroy", (function() {
            return component_destroy;
        }));
        __webpack_require__.d(__webpack_exports__, "destroyComponents", (function() {
            return destroyComponents;
        }));
        __webpack_require__.d(__webpack_exports__, "destroyAll", (function() {
            return destroyAll;
        }));
        __webpack_require__.d(__webpack_exports__, "PROP_TYPE", (function() {
            return PROP_TYPE;
        }));
        __webpack_require__.d(__webpack_exports__, "PROP_SERIALIZATION", (function() {
            return PROP_SERIALIZATION;
        }));
        __webpack_require__.d(__webpack_exports__, "CONTEXT", (function() {
            return CONTEXT;
        }));
        __webpack_require__.d(__webpack_exports__, "EVENT", (function() {
            return EVENT;
        }));
        function _setPrototypeOf(o, p) {
            return (_setPrototypeOf = Object.setPrototypeOf || function(o, p) {
                o.__proto__ = p;
                return o;
            })(o, p);
        }
        function _inheritsLoose(subClass, superClass) {
            subClass.prototype = Object.create(superClass.prototype);
            subClass.prototype.constructor = subClass;
            _setPrototypeOf(subClass, superClass);
        }
        function _extends() {
            return (_extends = Object.assign || function(target) {
                for (var i = 1; i < arguments.length; i++) {
                    var source = arguments[i];
                    for (var key in source) ({}).hasOwnProperty.call(source, key) && (target[key] = source[key]);
                }
                return target;
            }).apply(this, arguments);
        }
        function utils_isPromise(item) {
            try {
                if (!item) return !1;
                if ("undefined" != typeof Promise && item instanceof Promise) return !0;
                if ("undefined" != typeof window && "function" == typeof window.Window && item instanceof window.Window) return !1;
                if ("undefined" != typeof window && "function" == typeof window.constructor && item instanceof window.constructor) return !1;
                var _toString = {}.toString;
                if (_toString) {
                    var name = _toString.call(item);
                    if ("[object Window]" === name || "[object global]" === name || "[object DOMWindow]" === name) return !1;
                }
                if ("function" == typeof item.then) return !0;
            } catch (err) {
                return !1;
            }
            return !1;
        }
        var dispatchedErrors = [];
        var possiblyUnhandledPromiseHandlers = [];
        var activeCount = 0;
        var flushPromise;
        function flushActive() {
            if (!activeCount && flushPromise) {
                var promise = flushPromise;
                flushPromise = null;
                promise.resolve();
            }
        }
        function startActive() {
            activeCount += 1;
        }
        function endActive() {
            activeCount -= 1;
            flushActive();
        }
        var promise_ZalgoPromise = function() {
            function ZalgoPromise(handler) {
                var _this = this;
                this.resolved = void 0;
                this.rejected = void 0;
                this.errorHandled = void 0;
                this.value = void 0;
                this.error = void 0;
                this.handlers = void 0;
                this.dispatching = void 0;
                this.stack = void 0;
                this.resolved = !1;
                this.rejected = !1;
                this.errorHandled = !1;
                this.handlers = [];
                if (handler) {
                    var _result;
                    var _error;
                    var resolved = !1;
                    var rejected = !1;
                    var isAsync = !1;
                    startActive();
                    try {
                        handler((function(res) {
                            if (isAsync) _this.resolve(res); else {
                                resolved = !0;
                                _result = res;
                            }
                        }), (function(err) {
                            if (isAsync) _this.reject(err); else {
                                rejected = !0;
                                _error = err;
                            }
                        }));
                    } catch (err) {
                        endActive();
                        this.reject(err);
                        return;
                    }
                    endActive();
                    isAsync = !0;
                    resolved ? this.resolve(_result) : rejected && this.reject(_error);
                }
            }
            var _proto = ZalgoPromise.prototype;
            _proto.resolve = function(result) {
                if (this.resolved || this.rejected) return this;
                if (utils_isPromise(result)) throw new Error("Can not resolve promise with another promise");
                this.resolved = !0;
                this.value = result;
                this.dispatch();
                return this;
            };
            _proto.reject = function(error) {
                var _this2 = this;
                if (this.resolved || this.rejected) return this;
                if (utils_isPromise(error)) throw new Error("Can not reject promise with another promise");
                if (!error) {
                    var _err = error && "function" == typeof error.toString ? error.toString() : {}.toString.call(error);
                    error = new Error("Expected reject to be called with Error, got " + _err);
                }
                this.rejected = !0;
                this.error = error;
                this.errorHandled || setTimeout((function() {
                    _this2.errorHandled || function(err, promise) {
                        if (-1 === dispatchedErrors.indexOf(err)) {
                            dispatchedErrors.push(err);
                            setTimeout((function() {
                                throw err;
                            }), 1);
                            for (var j = 0; j < possiblyUnhandledPromiseHandlers.length; j++) possiblyUnhandledPromiseHandlers[j](err, promise);
                        }
                    }(error, _this2);
                }), 1);
                this.dispatch();
                return this;
            };
            _proto.asyncReject = function(error) {
                this.errorHandled = !0;
                this.reject(error);
                return this;
            };
            _proto.dispatch = function() {
                var resolved = this.resolved, rejected = this.rejected, handlers = this.handlers;
                if (!this.dispatching && (resolved || rejected)) {
                    this.dispatching = !0;
                    startActive();
                    var chain = function(firstPromise, secondPromise) {
                        return firstPromise.then((function(res) {
                            secondPromise.resolve(res);
                        }), (function(err) {
                            secondPromise.reject(err);
                        }));
                    };
                    for (var i = 0; i < handlers.length; i++) {
                        var _handlers$i = handlers[i], onSuccess = _handlers$i.onSuccess, onError = _handlers$i.onError, promise = _handlers$i.promise;
                        var _result2 = void 0;
                        if (resolved) try {
                            _result2 = onSuccess ? onSuccess(this.value) : this.value;
                        } catch (err) {
                            promise.reject(err);
                            continue;
                        } else if (rejected) {
                            if (!onError) {
                                promise.reject(this.error);
                                continue;
                            }
                            try {
                                _result2 = onError(this.error);
                            } catch (err) {
                                promise.reject(err);
                                continue;
                            }
                        }
                        if (_result2 instanceof ZalgoPromise && (_result2.resolved || _result2.rejected)) {
                            var promiseResult = _result2;
                            promiseResult.resolved ? promise.resolve(promiseResult.value) : promise.reject(promiseResult.error);
                            promiseResult.errorHandled = !0;
                        } else utils_isPromise(_result2) ? _result2 instanceof ZalgoPromise && (_result2.resolved || _result2.rejected) ? _result2.resolved ? promise.resolve(_result2.value) : promise.reject(_result2.error) : chain(_result2, promise) : promise.resolve(_result2);
                    }
                    handlers.length = 0;
                    this.dispatching = !1;
                    endActive();
                }
            };
            _proto.then = function(onSuccess, onError) {
                if (onSuccess && "function" != typeof onSuccess && !onSuccess.call) throw new Error("Promise.then expected a function for success handler");
                if (onError && "function" != typeof onError && !onError.call) throw new Error("Promise.then expected a function for error handler");
                var promise = new ZalgoPromise;
                this.handlers.push({
                    promise: promise,
                    onSuccess: onSuccess,
                    onError: onError
                });
                this.errorHandled = !0;
                this.dispatch();
                return promise;
            };
            _proto.catch = function(onError) {
                return this.then(void 0, onError);
            };
            _proto.finally = function(onFinally) {
                if (onFinally && "function" != typeof onFinally && !onFinally.call) throw new Error("Promise.finally expected a function");
                return this.then((function(result) {
                    return ZalgoPromise.try(onFinally).then((function() {
                        return result;
                    }));
                }), (function(err) {
                    return ZalgoPromise.try(onFinally).then((function() {
                        throw err;
                    }));
                }));
            };
            _proto.timeout = function(time, err) {
                var _this3 = this;
                if (this.resolved || this.rejected) return this;
                var timeout = setTimeout((function() {
                    _this3.resolved || _this3.rejected || _this3.reject(err || new Error("Promise timed out after " + time + "ms"));
                }), time);
                return this.then((function(result) {
                    clearTimeout(timeout);
                    return result;
                }));
            };
            _proto.toPromise = function() {
                if ("undefined" == typeof Promise) throw new TypeError("Could not find Promise");
                return Promise.resolve(this);
            };
            _proto.lazy = function() {
                this.errorHandled = !0;
                return this;
            };
            ZalgoPromise.resolve = function(value) {
                return value instanceof ZalgoPromise ? value : utils_isPromise(value) ? new ZalgoPromise((function(resolve, reject) {
                    return value.then(resolve, reject);
                })) : (new ZalgoPromise).resolve(value);
            };
            ZalgoPromise.reject = function(error) {
                return (new ZalgoPromise).reject(error);
            };
            ZalgoPromise.asyncReject = function(error) {
                return (new ZalgoPromise).asyncReject(error);
            };
            ZalgoPromise.all = function(promises) {
                var promise = new ZalgoPromise;
                var count = promises.length;
                var results = [].slice();
                if (!count) {
                    promise.resolve(results);
                    return promise;
                }
                var chain = function(i, firstPromise, secondPromise) {
                    return firstPromise.then((function(res) {
                        results[i] = res;
                        0 == (count -= 1) && promise.resolve(results);
                    }), (function(err) {
                        secondPromise.reject(err);
                    }));
                };
                for (var i = 0; i < promises.length; i++) {
                    var prom = promises[i];
                    if (prom instanceof ZalgoPromise) {
                        if (prom.resolved) {
                            results[i] = prom.value;
                            count -= 1;
                            continue;
                        }
                    } else if (!utils_isPromise(prom)) {
                        results[i] = prom;
                        count -= 1;
                        continue;
                    }
                    chain(i, ZalgoPromise.resolve(prom), promise);
                }
                0 === count && promise.resolve(results);
                return promise;
            };
            ZalgoPromise.hash = function(promises) {
                var result = {};
                var awaitPromises = [];
                var _loop = function(key) {
                    if (promises.hasOwnProperty(key)) {
                        var value = promises[key];
                        utils_isPromise(value) ? awaitPromises.push(value.then((function(res) {
                            result[key] = res;
                        }))) : result[key] = value;
                    }
                };
                for (var key in promises) _loop(key);
                return ZalgoPromise.all(awaitPromises).then((function() {
                    return result;
                }));
            };
            ZalgoPromise.map = function(items, method) {
                return ZalgoPromise.all(items.map(method));
            };
            ZalgoPromise.onPossiblyUnhandledException = function(handler) {
                return function(handler) {
                    possiblyUnhandledPromiseHandlers.push(handler);
                    return {
                        cancel: function() {
                            possiblyUnhandledPromiseHandlers.splice(possiblyUnhandledPromiseHandlers.indexOf(handler), 1);
                        }
                    };
                }(handler);
            };
            ZalgoPromise.try = function(method, context, args) {
                if (method && "function" != typeof method && !method.call) throw new Error("Promise.try expected a function");
                var result;
                startActive();
                try {
                    result = method.apply(context, args || []);
                } catch (err) {
                    endActive();
                    return ZalgoPromise.reject(err);
                }
                endActive();
                return ZalgoPromise.resolve(result);
            };
            ZalgoPromise.delay = function(_delay) {
                return new ZalgoPromise((function(resolve) {
                    setTimeout(resolve, _delay);
                }));
            };
            ZalgoPromise.isPromise = function(value) {
                return !!(value && value instanceof ZalgoPromise) || utils_isPromise(value);
            };
            ZalgoPromise.flush = function() {
                return function(Zalgo) {
                    var promise = flushPromise = flushPromise || new Zalgo;
                    flushActive();
                    return promise;
                }(ZalgoPromise);
            };
            return ZalgoPromise;
        }();
        function isRegex(item) {
            return "[object RegExp]" === {}.toString.call(item);
        }
        var WINDOW_TYPE = {
            IFRAME: "iframe",
            POPUP: "popup"
        };
        var IE_WIN_ACCESS_ERROR = "Call was rejected by callee.\r\n";
        function getActualProtocol(win) {
            void 0 === win && (win = window);
            return win.location.protocol;
        }
        function getProtocol(win) {
            void 0 === win && (win = window);
            if (win.mockDomain) {
                var protocol = win.mockDomain.split("//")[0];
                if (protocol) return protocol;
            }
            return getActualProtocol(win);
        }
        function isAboutProtocol(win) {
            void 0 === win && (win = window);
            return "about:" === getProtocol(win);
        }
        function utils_getParent(win) {
            void 0 === win && (win = window);
            if (win) try {
                if (win.parent && win.parent !== win) return win.parent;
            } catch (err) {}
        }
        function getOpener(win) {
            void 0 === win && (win = window);
            if (win && !utils_getParent(win)) try {
                return win.opener;
            } catch (err) {}
        }
        function canReadFromWindow(win) {
            try {
                return !0;
            } catch (err) {}
            return !1;
        }
        function getActualDomain(win) {
            void 0 === win && (win = window);
            var location = win.location;
            if (!location) throw new Error("Can not read window location");
            var protocol = getActualProtocol(win);
            if (!protocol) throw new Error("Can not read window protocol");
            if ("file:" === protocol) return "file://";
            if ("about:" === protocol) {
                var parent = utils_getParent(win);
                return parent && canReadFromWindow() ? getActualDomain(parent) : "about://";
            }
            var host = location.host;
            if (!host) throw new Error("Can not read window host");
            return protocol + "//" + host;
        }
        function getDomain(win) {
            void 0 === win && (win = window);
            var domain = getActualDomain(win);
            return domain && win.mockDomain && 0 === win.mockDomain.indexOf("mock:") ? win.mockDomain : domain;
        }
        function isSameDomain(win) {
            if (!function(win) {
                try {
                    if (win === window) return !0;
                } catch (err) {}
                try {
                    var desc = Object.getOwnPropertyDescriptor(win, "location");
                    if (desc && !1 === desc.enumerable) return !1;
                } catch (err) {}
                try {
                    if (isAboutProtocol(win) && canReadFromWindow()) return !0;
                } catch (err) {}
                try {
                    if (function(win) {
                        void 0 === win && (win = window);
                        return "mock:" === getProtocol(win);
                    }(win) && canReadFromWindow()) return !0;
                } catch (err) {}
                try {
                    if (getActualDomain(win) === getActualDomain(window)) return !0;
                } catch (err) {}
                return !1;
            }(win)) return !1;
            try {
                if (win === window) return !0;
                if (isAboutProtocol(win) && canReadFromWindow()) return !0;
                if (getDomain(window) === getDomain(win)) return !0;
            } catch (err) {}
            return !1;
        }
        function assertSameDomain(win) {
            if (!isSameDomain(win)) throw new Error("Expected window to be same domain");
            return win;
        }
        function isAncestorParent(parent, child) {
            if (!parent || !child) return !1;
            var childParent = utils_getParent(child);
            return childParent ? childParent === parent : -1 !== function(win) {
                var result = [];
                try {
                    for (;win.parent !== win; ) {
                        result.push(win.parent);
                        win = win.parent;
                    }
                } catch (err) {}
                return result;
            }(child).indexOf(parent);
        }
        function getFrames(win) {
            var result = [];
            var frames;
            try {
                frames = win.frames;
            } catch (err) {
                frames = win;
            }
            var len;
            try {
                len = frames.length;
            } catch (err) {}
            if (0 === len) return result;
            if (len) {
                for (var i = 0; i < len; i++) {
                    var frame = void 0;
                    try {
                        frame = frames[i];
                    } catch (err) {
                        continue;
                    }
                    result.push(frame);
                }
                return result;
            }
            for (var _i = 0; _i < 100; _i++) {
                var _frame = void 0;
                try {
                    _frame = frames[_i];
                } catch (err) {
                    return result;
                }
                if (!_frame) return result;
                result.push(_frame);
            }
            return result;
        }
        function getAllChildFrames(win) {
            var result = [];
            for (var _i3 = 0, _getFrames2 = getFrames(win); _i3 < _getFrames2.length; _i3++) {
                var frame = _getFrames2[_i3];
                result.push(frame);
                for (var _i5 = 0, _getAllChildFrames2 = getAllChildFrames(frame); _i5 < _getAllChildFrames2.length; _i5++) result.push(_getAllChildFrames2[_i5]);
            }
            return result;
        }
        function getTop(win) {
            void 0 === win && (win = window);
            try {
                if (win.top) return win.top;
            } catch (err) {}
            if (utils_getParent(win) === win) return win;
            try {
                if (isAncestorParent(window, win) && window.top) return window.top;
            } catch (err) {}
            try {
                if (isAncestorParent(win, window) && window.top) return window.top;
            } catch (err) {}
            for (var _i7 = 0, _getAllChildFrames4 = getAllChildFrames(win); _i7 < _getAllChildFrames4.length; _i7++) {
                var frame = _getAllChildFrames4[_i7];
                try {
                    if (frame.top) return frame.top;
                } catch (err) {}
                if (utils_getParent(frame) === frame) return frame;
            }
        }
        function getAllFramesInWindow(win) {
            var top = getTop(win);
            if (!top) throw new Error("Can not determine top window");
            var result = [].concat(getAllChildFrames(top), [ top ]);
            -1 === result.indexOf(win) && (result = [].concat(result, [ win ], getAllChildFrames(win)));
            return result;
        }
        var iframeWindows = [];
        var iframeFrames = [];
        function isWindowClosed(win, allowMock) {
            void 0 === allowMock && (allowMock = !0);
            try {
                if (win === window) return !1;
            } catch (err) {
                return !0;
            }
            try {
                if (!win) return !0;
            } catch (err) {
                return !0;
            }
            try {
                if (win.closed) return !0;
            } catch (err) {
                return !err || err.message !== IE_WIN_ACCESS_ERROR;
            }
            if (allowMock && isSameDomain(win)) try {
                if (win.mockclosed) return !0;
            } catch (err) {}
            try {
                if (!win.parent || !win.top) return !0;
            } catch (err) {}
            var iframeIndex = function(collection, item) {
                for (var i = 0; i < collection.length; i++) try {
                    if (collection[i] === item) return i;
                } catch (err) {}
                return -1;
            }(iframeWindows, win);
            if (-1 !== iframeIndex) {
                var frame = iframeFrames[iframeIndex];
                if (frame && function(frame) {
                    if (!frame.contentWindow) return !0;
                    if (!frame.parentNode) return !0;
                    var doc = frame.ownerDocument;
                    if (doc && doc.documentElement && !doc.documentElement.contains(frame)) {
                        var parent = frame;
                        for (;parent.parentNode && parent.parentNode !== parent; ) parent = parent.parentNode;
                        if (!parent.host || !doc.documentElement.contains(parent.host)) return !0;
                    }
                    return !1;
                }(frame)) return !0;
            }
            return !1;
        }
        function utils_getUserAgent(win) {
            return (win = win || window).navigator.mockUserAgent || win.navigator.userAgent;
        }
        function getFrameByName(win, name) {
            var winFrames = getFrames(win);
            for (var _i9 = 0; _i9 < winFrames.length; _i9++) {
                var childFrame = winFrames[_i9];
                try {
                    if (isSameDomain(childFrame) && childFrame.name === name && -1 !== winFrames.indexOf(childFrame)) return childFrame;
                } catch (err) {}
            }
            try {
                if (-1 !== winFrames.indexOf(win.frames[name])) return win.frames[name];
            } catch (err) {}
            try {
                if (-1 !== winFrames.indexOf(win[name])) return win[name];
            } catch (err) {}
        }
        function isOpener(parent, child) {
            return parent === getOpener(child);
        }
        function getAncestor(win) {
            void 0 === win && (win = window);
            return getOpener(win = win || window) || utils_getParent(win) || void 0;
        }
        function anyMatch(collection1, collection2) {
            for (var _i17 = 0; _i17 < collection1.length; _i17++) {
                var item1 = collection1[_i17];
                for (var _i19 = 0; _i19 < collection2.length; _i19++) if (item1 === collection2[_i19]) return !0;
            }
            return !1;
        }
        function getDistanceFromTop(win) {
            void 0 === win && (win = window);
            var distance = 0;
            var parent = win;
            for (;parent; ) (parent = utils_getParent(parent)) && (distance += 1);
            return distance;
        }
        function isSameTopWindow(win1, win2) {
            var top1 = getTop(win1) || win1;
            var top2 = getTop(win2) || win2;
            try {
                if (top1 && top2) return top1 === top2;
            } catch (err) {}
            var allFrames1 = getAllFramesInWindow(win1);
            var allFrames2 = getAllFramesInWindow(win2);
            if (anyMatch(allFrames1, allFrames2)) return !0;
            var opener1 = getOpener(top1);
            var opener2 = getOpener(top2);
            return opener1 && anyMatch(getAllFramesInWindow(opener1), allFrames2) || opener2 && anyMatch(getAllFramesInWindow(opener2), allFrames1), 
            !1;
        }
        function matchDomain(pattern, origin) {
            if ("string" == typeof pattern) {
                if ("string" == typeof origin) return "*" === pattern || origin === pattern;
                if (isRegex(origin)) return !1;
                if (Array.isArray(origin)) return !1;
            }
            return isRegex(pattern) ? isRegex(origin) ? pattern.toString() === origin.toString() : !Array.isArray(origin) && Boolean(origin.match(pattern)) : !!Array.isArray(pattern) && (Array.isArray(origin) ? JSON.stringify(pattern) === JSON.stringify(origin) : !isRegex(origin) && pattern.some((function(subpattern) {
                return matchDomain(subpattern, origin);
            })));
        }
        function getDomainFromUrl(url) {
            return url.match(/^(https?|mock|file):\/\//) ? url.split("/").slice(0, 3).join("/") : getDomain();
        }
        function onCloseWindow(win, callback, delay, maxtime) {
            void 0 === delay && (delay = 1e3);
            void 0 === maxtime && (maxtime = 1 / 0);
            var timeout;
            !function check() {
                if (isWindowClosed(win)) {
                    timeout && clearTimeout(timeout);
                    return callback();
                }
                if (maxtime <= 0) clearTimeout(timeout); else {
                    maxtime -= delay;
                    timeout = setTimeout(check, delay);
                }
            }();
            return {
                cancel: function() {
                    timeout && clearTimeout(timeout);
                }
            };
        }
        function isWindow(obj) {
            try {
                if (obj === window) return !0;
            } catch (err) {
                if (err && err.message === IE_WIN_ACCESS_ERROR) return !0;
            }
            try {
                if ("[object Window]" === {}.toString.call(obj)) return !0;
            } catch (err) {
                if (err && err.message === IE_WIN_ACCESS_ERROR) return !0;
            }
            try {
                if (window.Window && obj instanceof window.Window) return !0;
            } catch (err) {
                if (err && err.message === IE_WIN_ACCESS_ERROR) return !0;
            }
            try {
                if (obj && obj.self === obj) return !0;
            } catch (err) {
                if (err && err.message === IE_WIN_ACCESS_ERROR) return !0;
            }
            try {
                if (obj && obj.parent === obj) return !0;
            } catch (err) {
                if (err && err.message === IE_WIN_ACCESS_ERROR) return !0;
            }
            try {
                if (obj && obj.top === obj) return !0;
            } catch (err) {
                if (err && err.message === IE_WIN_ACCESS_ERROR) return !0;
            }
            try {
                if (obj && "__unlikely_value__" === obj.__cross_domain_utils_window_check__) return !1;
            } catch (err) {
                return !0;
            }
            try {
                if ("postMessage" in obj && "self" in obj && "location" in obj) return !0;
            } catch (err) {}
            return !1;
        }
        function normalizeMockUrl(url) {
            if (!(domain = getDomainFromUrl(url), 0 === domain.indexOf("mock:"))) return url;
            var domain;
            throw new Error("Mock urls not supported out of test mode");
        }
        function getFrameForWindow(win) {
            if (isSameDomain(win)) return assertSameDomain(win).frameElement;
            for (var _i21 = 0, _document$querySelect2 = document.querySelectorAll("iframe"); _i21 < _document$querySelect2.length; _i21++) {
                var frame = _document$querySelect2[_i21];
                if (frame && frame.contentWindow && frame.contentWindow === win) return frame;
            }
        }
        function closeWindow(win) {
            if (function(win) {
                void 0 === win && (win = window);
                return Boolean(utils_getParent(win));
            }(win)) {
                var frame = getFrameForWindow(win);
                if (frame && frame.parentElement) {
                    frame.parentElement.removeChild(frame);
                    return;
                }
            }
            try {
                win.close();
            } catch (err) {}
        }
        function util_safeIndexOf(collection, item) {
            for (var i = 0; i < collection.length; i++) try {
                if (collection[i] === item) return i;
            } catch (err) {}
            return -1;
        }
        var weakmap_CrossDomainSafeWeakMap = function() {
            function CrossDomainSafeWeakMap() {
                this.name = void 0;
                this.weakmap = void 0;
                this.keys = void 0;
                this.values = void 0;
                this.name = "__weakmap_" + (1e9 * Math.random() >>> 0) + "__";
                if (function() {
                    if ("undefined" == typeof WeakMap) return !1;
                    if (void 0 === Object.freeze) return !1;
                    try {
                        var testWeakMap = new WeakMap;
                        var testKey = {};
                        Object.freeze(testKey);
                        testWeakMap.set(testKey, "__testvalue__");
                        return "__testvalue__" === testWeakMap.get(testKey);
                    } catch (err) {
                        return !1;
                    }
                }()) try {
                    this.weakmap = new WeakMap;
                } catch (err) {}
                this.keys = [];
                this.values = [];
            }
            var _proto = CrossDomainSafeWeakMap.prototype;
            _proto._cleanupClosedWindows = function() {
                var weakmap = this.weakmap;
                var keys = this.keys;
                for (var i = 0; i < keys.length; i++) {
                    var value = keys[i];
                    if (isWindow(value) && isWindowClosed(value)) {
                        if (weakmap) try {
                            weakmap.delete(value);
                        } catch (err) {}
                        keys.splice(i, 1);
                        this.values.splice(i, 1);
                        i -= 1;
                    }
                }
            };
            _proto.isSafeToReadWrite = function(key) {
                return !isWindow(key);
            };
            _proto.set = function(key, value) {
                if (!key) throw new Error("WeakMap expected key");
                var weakmap = this.weakmap;
                if (weakmap) try {
                    weakmap.set(key, value);
                } catch (err) {
                    delete this.weakmap;
                }
                if (this.isSafeToReadWrite(key)) try {
                    var name = this.name;
                    var entry = key[name];
                    entry && entry[0] === key ? entry[1] = value : Object.defineProperty(key, name, {
                        value: [ key, value ],
                        writable: !0
                    });
                    return;
                } catch (err) {}
                this._cleanupClosedWindows();
                var keys = this.keys;
                var values = this.values;
                var index = util_safeIndexOf(keys, key);
                if (-1 === index) {
                    keys.push(key);
                    values.push(value);
                } else values[index] = value;
            };
            _proto.get = function(key) {
                if (!key) throw new Error("WeakMap expected key");
                var weakmap = this.weakmap;
                if (weakmap) try {
                    if (weakmap.has(key)) return weakmap.get(key);
                } catch (err) {
                    delete this.weakmap;
                }
                if (this.isSafeToReadWrite(key)) try {
                    var entry = key[this.name];
                    return entry && entry[0] === key ? entry[1] : void 0;
                } catch (err) {}
                this._cleanupClosedWindows();
                var index = util_safeIndexOf(this.keys, key);
                if (-1 !== index) return this.values[index];
            };
            _proto.delete = function(key) {
                if (!key) throw new Error("WeakMap expected key");
                var weakmap = this.weakmap;
                if (weakmap) try {
                    weakmap.delete(key);
                } catch (err) {
                    delete this.weakmap;
                }
                if (this.isSafeToReadWrite(key)) try {
                    var entry = key[this.name];
                    entry && entry[0] === key && (entry[0] = entry[1] = void 0);
                } catch (err) {}
                this._cleanupClosedWindows();
                var keys = this.keys;
                var index = util_safeIndexOf(keys, key);
                if (-1 !== index) {
                    keys.splice(index, 1);
                    this.values.splice(index, 1);
                }
            };
            _proto.has = function(key) {
                if (!key) throw new Error("WeakMap expected key");
                var weakmap = this.weakmap;
                if (weakmap) try {
                    if (weakmap.has(key)) return !0;
                } catch (err) {
                    delete this.weakmap;
                }
                if (this.isSafeToReadWrite(key)) try {
                    var entry = key[this.name];
                    return !(!entry || entry[0] !== key);
                } catch (err) {}
                this._cleanupClosedWindows();
                return -1 !== util_safeIndexOf(this.keys, key);
            };
            _proto.getOrSet = function(key, getter) {
                if (this.has(key)) return this.get(key);
                var value = getter();
                this.set(key, value);
                return value;
            };
            return CrossDomainSafeWeakMap;
        }();
        function _getPrototypeOf(o) {
            return (_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function(o) {
                return o.__proto__ || Object.getPrototypeOf(o);
            })(o);
        }
        function _isNativeReflectConstruct() {
            if ("undefined" == typeof Reflect || !Reflect.construct) return !1;
            if (Reflect.construct.sham) return !1;
            if ("function" == typeof Proxy) return !0;
            try {
                Date.prototype.toString.call(Reflect.construct(Date, [], (function() {})));
                return !0;
            } catch (e) {
                return !1;
            }
        }
        function construct_construct(Parent, args, Class) {
            return (construct_construct = _isNativeReflectConstruct() ? Reflect.construct : function(Parent, args, Class) {
                var a = [ null ];
                a.push.apply(a, args);
                var instance = new (Function.bind.apply(Parent, a));
                Class && _setPrototypeOf(instance, Class.prototype);
                return instance;
            }).apply(null, arguments);
        }
        function wrapNativeSuper_wrapNativeSuper(Class) {
            var _cache = "function" == typeof Map ? new Map : void 0;
            return (wrapNativeSuper_wrapNativeSuper = function(Class) {
                if (null === Class || !(fn = Class, -1 !== Function.toString.call(fn).indexOf("[native code]"))) return Class;
                var fn;
                if ("function" != typeof Class) throw new TypeError("Super expression must either be null or a function");
                if (void 0 !== _cache) {
                    if (_cache.has(Class)) return _cache.get(Class);
                    _cache.set(Class, Wrapper);
                }
                function Wrapper() {
                    return construct_construct(Class, arguments, _getPrototypeOf(this).constructor);
                }
                Wrapper.prototype = Object.create(Class.prototype, {
                    constructor: {
                        value: Wrapper,
                        enumerable: !1,
                        writable: !0,
                        configurable: !0
                    }
                });
                return _setPrototypeOf(Wrapper, Class);
            })(Class);
        }
        function getFunctionName(fn) {
            return fn.name || fn.__name__ || fn.displayName || "anonymous";
        }
        function setFunctionName(fn, name) {
            try {
                delete fn.name;
                fn.name = name;
            } catch (err) {}
            fn.__name__ = fn.displayName = name;
            return fn;
        }
        function base64encode(str) {
            if ("function" == typeof btoa) return btoa(encodeURIComponent(str).replace(/%([0-9A-F]{2})/g, (function(m, p1) {
                return String.fromCharCode(parseInt(p1, 16));
            }))).replace(/[=]/g, "");
            if ("undefined" != typeof Buffer) return Buffer.from(str, "utf8").toString("base64").replace(/[=]/g, "");
            throw new Error("Can not find window.btoa or Buffer");
        }
        function uniqueID() {
            var chars = "0123456789abcdef";
            return "uid_" + "xxxxxxxxxx".replace(/./g, (function() {
                return chars.charAt(Math.floor(Math.random() * chars.length));
            })) + "_" + base64encode((new Date).toISOString().slice(11, 19).replace("T", ".")).replace(/[^a-zA-Z0-9]/g, "").toLowerCase();
        }
        var objectIDs;
        function serializeArgs(args) {
            try {
                return JSON.stringify([].slice.call(args), (function(subkey, val) {
                    return "function" == typeof val ? "memoize[" + function(obj) {
                        objectIDs = objectIDs || new weakmap_CrossDomainSafeWeakMap;
                        if (null == obj || "object" != typeof obj && "function" != typeof obj) throw new Error("Invalid object");
                        var uid = objectIDs.get(obj);
                        if (!uid) {
                            uid = typeof obj + ":" + uniqueID();
                            objectIDs.set(obj, uid);
                        }
                        return uid;
                    }(val) + "]" : val;
                }));
            } catch (err) {
                throw new Error("Arguments not serializable -- can not be used to memoize");
            }
        }
        function getEmptyObject() {
            return {};
        }
        var memoizeGlobalIndex = 0;
        var memoizeGlobalIndexValidFrom = 0;
        function memoize(method, options) {
            void 0 === options && (options = {});
            var _options$thisNamespac = options.thisNamespace, thisNamespace = void 0 !== _options$thisNamespac && _options$thisNamespac, cacheTime = options.time;
            var simpleCache;
            var thisCache;
            var memoizeIndex = memoizeGlobalIndex;
            memoizeGlobalIndex += 1;
            var memoizedFunction = function() {
                for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) args[_key] = arguments[_key];
                if (memoizeIndex < memoizeGlobalIndexValidFrom) {
                    simpleCache = null;
                    thisCache = null;
                    memoizeIndex = memoizeGlobalIndex;
                    memoizeGlobalIndex += 1;
                }
                var cache;
                cache = thisNamespace ? (thisCache = thisCache || new weakmap_CrossDomainSafeWeakMap).getOrSet(this, getEmptyObject) : simpleCache = simpleCache || {};
                var cacheKey = serializeArgs(args);
                var cacheResult = cache[cacheKey];
                if (cacheResult && cacheTime && Date.now() - cacheResult.time < cacheTime) {
                    delete cache[cacheKey];
                    cacheResult = null;
                }
                if (cacheResult) return cacheResult.value;
                var time = Date.now();
                var value = method.apply(this, arguments);
                cache[cacheKey] = {
                    time: time,
                    value: value
                };
                return value;
            };
            memoizedFunction.reset = function() {
                simpleCache = null;
                thisCache = null;
            };
            return setFunctionName(memoizedFunction, (options.name || getFunctionName(method)) + "::memoized");
        }
        memoize.clear = function() {
            memoizeGlobalIndexValidFrom = memoizeGlobalIndex;
        };
        function memoizePromise(method) {
            var cache = {};
            function memoizedPromiseFunction() {
                var _arguments = arguments, _this = this;
                for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) args[_key2] = arguments[_key2];
                var key = serializeArgs(args);
                if (cache.hasOwnProperty(key)) return cache[key];
                cache[key] = promise_ZalgoPromise.try((function() {
                    return method.apply(_this, _arguments);
                })).finally((function() {
                    delete cache[key];
                }));
                return cache[key];
            }
            memoizedPromiseFunction.reset = function() {
                cache = {};
            };
            return setFunctionName(memoizedPromiseFunction, getFunctionName(method) + "::promiseMemoized");
        }
        function src_util_noop() {}
        function once(method) {
            var called = !1;
            return setFunctionName((function() {
                if (!called) {
                    called = !0;
                    return method.apply(this, arguments);
                }
            }), getFunctionName(method) + "::once");
        }
        function stringifyError(err, level) {
            void 0 === level && (level = 1);
            if (level >= 3) return "stringifyError stack overflow";
            try {
                if (!err) return "<unknown error: " + {}.toString.call(err) + ">";
                if ("string" == typeof err) return err;
                if (err instanceof Error) {
                    var stack = err && err.stack;
                    var message = err && err.message;
                    if (stack && message) return -1 !== stack.indexOf(message) ? stack : message + "\n" + stack;
                    if (stack) return stack;
                    if (message) return message;
                }
                return err && err.toString && "function" == typeof err.toString ? err.toString() : {}.toString.call(err);
            } catch (newErr) {
                return "Error while stringifying error: " + stringifyError(newErr, level + 1);
            }
        }
        function stringify(item) {
            return "string" == typeof item ? item : item && item.toString && "function" == typeof item.toString ? item.toString() : {}.toString.call(item);
        }
        function extend(obj, source) {
            if (!source) return obj;
            if (Object.assign) return Object.assign(obj, source);
            for (var key in source) source.hasOwnProperty(key) && (obj[key] = source[key]);
            return obj;
        }
        memoize((function(obj) {
            if (Object.values) return Object.values(obj);
            var result = [];
            for (var key in obj) obj.hasOwnProperty(key) && result.push(obj[key]);
            return result;
        }));
        function identity(item) {
            return item;
        }
        function safeInterval(method, time) {
            var timeout;
            !function loop() {
                timeout = setTimeout((function() {
                    method();
                    loop();
                }), time);
            }();
            return {
                cancel: function() {
                    clearTimeout(timeout);
                }
            };
        }
        function dasherizeToCamel(string) {
            return string.replace(/-([a-z])/g, (function(g) {
                return g[1].toUpperCase();
            }));
        }
        function defineLazyProp(obj, key, getter) {
            if (Array.isArray(obj)) {
                if ("number" != typeof key) throw new TypeError("Array key must be number");
            } else if ("object" == typeof obj && null !== obj && "string" != typeof key) throw new TypeError("Object key must be string");
            Object.defineProperty(obj, key, {
                configurable: !0,
                enumerable: !0,
                get: function() {
                    delete obj[key];
                    var value = getter();
                    obj[key] = value;
                    return value;
                },
                set: function(value) {
                    delete obj[key];
                    obj[key] = value;
                }
            });
        }
        function arrayFrom(item) {
            return [].slice.call(item);
        }
        function isObjectObject(obj) {
            return "object" == typeof (item = obj) && null !== item && "[object Object]" === {}.toString.call(obj);
            var item;
        }
        function isPlainObject(obj) {
            if (!isObjectObject(obj)) return !1;
            var constructor = obj.constructor;
            if ("function" != typeof constructor) return !1;
            var prototype = constructor.prototype;
            return !!isObjectObject(prototype) && !!prototype.hasOwnProperty("isPrototypeOf");
        }
        function replaceObject(item, replacer, fullKey) {
            void 0 === fullKey && (fullKey = "");
            if (Array.isArray(item)) {
                var length = item.length;
                var result = [];
                var _loop2 = function(i) {
                    defineLazyProp(result, i, (function() {
                        var itemKey = fullKey ? fullKey + "." + i : "" + i;
                        var child = replacer(item[i], i, itemKey);
                        (isPlainObject(child) || Array.isArray(child)) && (child = replaceObject(child, replacer, itemKey));
                        return child;
                    }));
                };
                for (var i = 0; i < length; i++) _loop2(i);
                return result;
            }
            if (isPlainObject(item)) {
                var _result = {};
                var _loop3 = function(key) {
                    if (!item.hasOwnProperty(key)) return "continue";
                    defineLazyProp(_result, key, (function() {
                        var itemKey = fullKey ? fullKey + "." + key : "" + key;
                        var child = replacer(item[key], key, itemKey);
                        (isPlainObject(child) || Array.isArray(child)) && (child = replaceObject(child, replacer, itemKey));
                        return child;
                    }));
                };
                for (var key in item) _loop3(key);
                return _result;
            }
            throw new Error("Pass an object or array");
        }
        function isDefined(value) {
            return null != value;
        }
        function util_isRegex(item) {
            return "[object RegExp]" === {}.toString.call(item);
        }
        function util_getOrSet(obj, key, getter) {
            if (obj.hasOwnProperty(key)) return obj[key];
            var val = getter();
            obj[key] = val;
            return val;
        }
        function cleanup(obj) {
            var tasks = [];
            var cleaned = !1;
            var cleanErr;
            var cleaner = {
                set: function(name, item) {
                    if (!cleaned) {
                        obj[name] = item;
                        cleaner.register((function() {
                            delete obj[name];
                        }));
                    }
                    return item;
                },
                register: function(method) {
                    var task = once((function() {
                        return method(cleanErr);
                    }));
                    cleaned ? method(cleanErr) : tasks.push(task);
                    return {
                        cancel: function() {
                            var index = tasks.indexOf(task);
                            -1 !== index && tasks.splice(index, 1);
                        }
                    };
                },
                all: function(err) {
                    cleanErr = err;
                    var results = [];
                    cleaned = !0;
                    for (;tasks.length; ) {
                        var task = tasks.shift();
                        results.push(task());
                    }
                    return promise_ZalgoPromise.all(results).then(src_util_noop);
                }
            };
            return cleaner;
        }
        function assertExists(name, thing) {
            if (null == thing) throw new Error("Expected " + name + " to be present");
            return thing;
        }
        var util_ExtendableError = function(_Error) {
            _inheritsLoose(ExtendableError, _Error);
            function ExtendableError(message) {
                var _this6;
                (_this6 = _Error.call(this, message) || this).name = _this6.constructor.name;
                "function" == typeof Error.captureStackTrace ? Error.captureStackTrace(function(self) {
                    if (void 0 === self) throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
                    return self;
                }(_this6), _this6.constructor) : _this6.stack = new Error(message).stack;
                return _this6;
            }
            return ExtendableError;
        }(wrapNativeSuper_wrapNativeSuper(Error));
        function getBody() {
            var body = document.body;
            if (!body) throw new Error("Body element not found");
            return body;
        }
        function isDocumentReady() {
            return Boolean(document.body) && "complete" === document.readyState;
        }
        function isDocumentInteractive() {
            return Boolean(document.body) && "interactive" === document.readyState;
        }
        function urlEncode(str) {
            return encodeURIComponent(str);
        }
        memoize((function() {
            return new promise_ZalgoPromise((function(resolve) {
                if (isDocumentReady() || isDocumentInteractive()) return resolve();
                var interval = setInterval((function() {
                    if (isDocumentReady() || isDocumentInteractive()) {
                        clearInterval(interval);
                        return resolve();
                    }
                }), 10);
            }));
        }));
        function parseQuery(queryString) {
            return function(method, logic, args) {
                void 0 === args && (args = []);
                var cache = method.__inline_memoize_cache__ = method.__inline_memoize_cache__ || {};
                var key = serializeArgs(args);
                return cache.hasOwnProperty(key) ? cache[key] : cache[key] = function() {
                    var params = {};
                    if (!queryString) return params;
                    if (-1 === queryString.indexOf("=")) return params;
                    for (var _i2 = 0, _queryString$split2 = queryString.split("&"); _i2 < _queryString$split2.length; _i2++) {
                        var pair = _queryString$split2[_i2];
                        (pair = pair.split("="))[0] && pair[1] && (params[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]));
                    }
                    return params;
                }.apply(void 0, args);
            }(parseQuery, 0, [ queryString ]);
        }
        function extendQuery(originalQuery, props) {
            void 0 === props && (props = {});
            return props && Object.keys(props).length ? function(obj) {
                void 0 === obj && (obj = {});
                return Object.keys(obj).filter((function(key) {
                    return "string" == typeof obj[key] || "boolean" == typeof obj[key];
                })).map((function(key) {
                    var val = obj[key];
                    if ("string" != typeof val && "boolean" != typeof val) throw new TypeError("Invalid type for query");
                    return urlEncode(key) + "=" + urlEncode(val.toString());
                })).join("&");
            }(_extends({}, parseQuery(originalQuery), props)) : originalQuery;
        }
        function appendChild(container, child) {
            container.appendChild(child);
        }
        function isElement(element) {
            return element instanceof window.Element || null !== element && "object" == typeof element && 1 === element.nodeType && "object" == typeof element.style && "object" == typeof element.ownerDocument;
        }
        function getElementSafe(id, doc) {
            void 0 === doc && (doc = document);
            return isElement(id) ? id : "string" == typeof id ? doc.querySelector(id) : void 0;
        }
        function elementReady(id) {
            return new promise_ZalgoPromise((function(resolve, reject) {
                var name = stringify(id);
                var el = getElementSafe(id);
                if (el) return resolve(el);
                if (isDocumentReady()) return reject(new Error("Document is ready and element " + name + " does not exist"));
                var interval = setInterval((function() {
                    if (el = getElementSafe(id)) {
                        resolve(el);
                        clearInterval(interval);
                    } else if (isDocumentReady()) {
                        clearInterval(interval);
                        return reject(new Error("Document is ready and element " + name + " does not exist"));
                    }
                }), 10);
            }));
        }
        var dom_PopupOpenError = function(_ExtendableError) {
            _inheritsLoose(PopupOpenError, _ExtendableError);
            function PopupOpenError() {
                return _ExtendableError.apply(this, arguments) || this;
            }
            return PopupOpenError;
        }(util_ExtendableError);
        var awaitFrameLoadPromises;
        function awaitFrameLoad(frame) {
            if ((awaitFrameLoadPromises = awaitFrameLoadPromises || new weakmap_CrossDomainSafeWeakMap).has(frame)) {
                var _promise = awaitFrameLoadPromises.get(frame);
                if (_promise) return _promise;
            }
            var promise = new promise_ZalgoPromise((function(resolve, reject) {
                frame.addEventListener("load", (function() {
                    !function(frame) {
                        !function() {
                            for (var i = 0; i < iframeWindows.length; i++) {
                                var closed = !1;
                                try {
                                    closed = iframeWindows[i].closed;
                                } catch (err) {}
                                if (closed) {
                                    iframeFrames.splice(i, 1);
                                    iframeWindows.splice(i, 1);
                                }
                            }
                        }();
                        if (frame && frame.contentWindow) try {
                            iframeWindows.push(frame.contentWindow);
                            iframeFrames.push(frame);
                        } catch (err) {}
                    }(frame);
                    resolve(frame);
                }));
                frame.addEventListener("error", (function(err) {
                    frame.contentWindow ? resolve(frame) : reject(err);
                }));
            }));
            awaitFrameLoadPromises.set(frame, promise);
            return promise;
        }
        function awaitFrameWindow(frame) {
            return awaitFrameLoad(frame).then((function(loadedFrame) {
                if (!loadedFrame.contentWindow) throw new Error("Could not find window in iframe");
                return loadedFrame.contentWindow;
            }));
        }
        function dom_iframe(options, container) {
            void 0 === options && (options = {});
            var style = options.style || {};
            var frame = function(tag, options, container) {
                void 0 === tag && (tag = "div");
                void 0 === options && (options = {});
                tag = tag.toLowerCase();
                var element = document.createElement(tag);
                options.style && extend(element.style, options.style);
                options.class && (element.className = options.class.join(" "));
                options.id && element.setAttribute("id", options.id);
                if (options.attributes) for (var _i10 = 0, _Object$keys2 = Object.keys(options.attributes); _i10 < _Object$keys2.length; _i10++) {
                    var key = _Object$keys2[_i10];
                    element.setAttribute(key, options.attributes[key]);
                }
                options.styleSheet && function(el, styleText, doc) {
                    void 0 === doc && (doc = window.document);
                    el.styleSheet ? el.styleSheet.cssText = styleText : el.appendChild(doc.createTextNode(styleText));
                }(element, options.styleSheet);
                if (options.html) {
                    if ("iframe" === tag) throw new Error("Iframe html can not be written unless container provided and iframe in DOM");
                    element.innerHTML = options.html;
                }
                return element;
            }("iframe", {
                attributes: _extends({
                    allowTransparency: "true"
                }, options.attributes || {}),
                style: _extends({
                    backgroundColor: "transparent",
                    border: "none"
                }, style),
                html: options.html,
                class: options.class
            });
            var isIE = window.navigator.userAgent.match(/MSIE|Edge/i);
            frame.hasAttribute("id") || frame.setAttribute("id", uniqueID());
            awaitFrameLoad(frame);
            container && function(id, doc) {
                void 0 === doc && (doc = document);
                var element = getElementSafe(id, doc);
                if (element) return element;
                throw new Error("Can not find element: " + stringify(id));
            }(container).appendChild(frame);
            (options.url || isIE) && frame.setAttribute("src", options.url || "about:blank");
            return frame;
        }
        function addEventListener(obj, event, handler) {
            obj.addEventListener(event, handler);
            return {
                cancel: function() {
                    obj.removeEventListener(event, handler);
                }
            };
        }
        function showElement(element) {
            element.style.setProperty("display", "");
        }
        function hideElement(element) {
            element.style.setProperty("display", "none", "important");
        }
        function destroyElement(element) {
            element && element.parentNode && element.parentNode.removeChild(element);
        }
        function isElementClosed(el) {
            return !(el && el.parentNode && el.ownerDocument && el.ownerDocument.documentElement && el.ownerDocument.documentElement.contains(el));
        }
        function onResize(el, handler, _temp) {
            var _ref2 = void 0 === _temp ? {} : _temp, _ref2$width = _ref2.width, width = void 0 === _ref2$width || _ref2$width, _ref2$height = _ref2.height, height = void 0 === _ref2$height || _ref2$height, _ref2$interval = _ref2.interval, interval = void 0 === _ref2$interval ? 100 : _ref2$interval, _ref2$win = _ref2.win, win = void 0 === _ref2$win ? window : _ref2$win;
            var currentWidth = el.offsetWidth;
            var currentHeight = el.offsetHeight;
            var canceled = !1;
            handler({
                width: currentWidth,
                height: currentHeight
            });
            var check = function() {
                if (!canceled && function(el) {
                    return Boolean(el.offsetWidth || el.offsetHeight || el.getClientRects().length);
                }(el)) {
                    var newWidth = el.offsetWidth;
                    var newHeight = el.offsetHeight;
                    (width && newWidth !== currentWidth || height && newHeight !== currentHeight) && handler({
                        width: newWidth,
                        height: newHeight
                    });
                    currentWidth = newWidth;
                    currentHeight = newHeight;
                }
            };
            var observer;
            var timeout;
            win.addEventListener("resize", check);
            if (void 0 !== win.ResizeObserver) {
                (observer = new win.ResizeObserver(check)).observe(el);
                timeout = safeInterval(check, 10 * interval);
            } else if (void 0 !== win.MutationObserver) {
                (observer = new win.MutationObserver(check)).observe(el, {
                    attributes: !0,
                    childList: !0,
                    subtree: !0,
                    characterData: !1
                });
                timeout = safeInterval(check, 10 * interval);
            } else timeout = safeInterval(check, interval);
            return {
                cancel: function() {
                    canceled = !0;
                    observer.disconnect();
                    window.removeEventListener("resize", check);
                    timeout.cancel();
                }
            };
        }
        function isShadowElement(element) {
            for (;element.parentNode; ) element = element.parentNode;
            return "[object ShadowRoot]" === element.toString();
        }
        var currentScript = "undefined" != typeof document ? document.currentScript : null;
        var getCurrentScript = memoize((function() {
            if (currentScript) return currentScript;
            if (currentScript = function() {
                try {
                    var stack = function() {
                        try {
                            throw new Error("_");
                        } catch (err) {
                            return err.stack || "";
                        }
                    }();
                    var stackDetails = /.*at [^(]*\((.*):(.+):(.+)\)$/gi.exec(stack);
                    var scriptLocation = stackDetails && stackDetails[1];
                    if (!scriptLocation) return;
                    for (var _i22 = 0, _Array$prototype$slic2 = [].slice.call(document.getElementsByTagName("script")).reverse(); _i22 < _Array$prototype$slic2.length; _i22++) {
                        var script = _Array$prototype$slic2[_i22];
                        if (script.src && script.src === scriptLocation) return script;
                    }
                } catch (err) {}
            }()) return currentScript;
            throw new Error("Can not determine current script");
        }));
        var currentUID = uniqueID();
        memoize((function() {
            var script;
            try {
                script = getCurrentScript();
            } catch (err) {
                return currentUID;
            }
            var uid = script.getAttribute("data-uid");
            if (uid && "string" == typeof uid) return uid;
            if ((uid = script.getAttribute("data-uid-auto")) && "string" == typeof uid) return uid;
            if (script.src) {
                var hashedString = function(str) {
                    var hash = "";
                    for (var i = 0; i < str.length; i++) {
                        var total = str[i].charCodeAt(0) * i;
                        str[i + 1] && (total += str[i + 1].charCodeAt(0) * (i - 1));
                        hash += String.fromCharCode(97 + Math.abs(total) % 26);
                    }
                    return hash;
                }(JSON.stringify({
                    src: script.src,
                    dataset: script.dataset
                }));
                uid = "uid_" + hashedString.slice(hashedString.length - 30);
            } else uid = uniqueID();
            script.setAttribute("data-uid-auto", uid);
            return uid;
        }));
        function isPerc(str) {
            return "string" == typeof str && /^[0-9]+%$/.test(str);
        }
        function toNum(val) {
            if ("number" == typeof val) return val;
            var match = val.match(/^([0-9]+)(px|%)$/);
            if (!match) throw new Error("Could not match css value from " + val);
            return parseInt(match[1], 10);
        }
        function toPx(val) {
            return toNum(val) + "px";
        }
        function toCSS(val) {
            return "number" == typeof val ? toPx(val) : isPerc(val) ? val : toPx(val);
        }
        function normalizeDimension(dim, max) {
            if ("number" == typeof dim) return dim;
            if (isPerc(dim)) return parseInt(max * toNum(dim) / 100, 10);
            if ("string" == typeof (str = dim) && /^[0-9]+px$/.test(str)) return toNum(dim);
            var str;
            throw new Error("Can not normalize dimension: " + dim);
        }
        function global_getGlobal(win) {
            void 0 === win && (win = window);
            var globalKey = "__post_robot_10_0_44__";
            return win !== window ? win[globalKey] : win[globalKey] = win[globalKey] || {};
        }
        var getObj = function() {
            return {};
        };
        function globalStore(key, defStore) {
            void 0 === key && (key = "store");
            void 0 === defStore && (defStore = getObj);
            return util_getOrSet(global_getGlobal(), key, (function() {
                var store = defStore();
                return {
                    has: function(storeKey) {
                        return store.hasOwnProperty(storeKey);
                    },
                    get: function(storeKey, defVal) {
                        return store.hasOwnProperty(storeKey) ? store[storeKey] : defVal;
                    },
                    set: function(storeKey, val) {
                        store[storeKey] = val;
                        return val;
                    },
                    del: function(storeKey) {
                        delete store[storeKey];
                    },
                    getOrSet: function(storeKey, getter) {
                        return util_getOrSet(store, storeKey, getter);
                    },
                    reset: function() {
                        store = defStore();
                    },
                    keys: function() {
                        return Object.keys(store);
                    }
                };
            }));
        }
        var WildCard = function() {};
        function getWildcard() {
            var global = global_getGlobal();
            global.WINDOW_WILDCARD = global.WINDOW_WILDCARD || new WildCard;
            return global.WINDOW_WILDCARD;
        }
        function windowStore(key, defStore) {
            void 0 === key && (key = "store");
            void 0 === defStore && (defStore = getObj);
            return globalStore("windowStore").getOrSet(key, (function() {
                var winStore = new weakmap_CrossDomainSafeWeakMap;
                var getStore = function(win) {
                    return winStore.getOrSet(win, defStore);
                };
                return {
                    has: function(win) {
                        return getStore(win).hasOwnProperty(key);
                    },
                    get: function(win, defVal) {
                        var store = getStore(win);
                        return store.hasOwnProperty(key) ? store[key] : defVal;
                    },
                    set: function(win, val) {
                        getStore(win)[key] = val;
                        return val;
                    },
                    del: function(win) {
                        delete getStore(win)[key];
                    },
                    getOrSet: function(win, getter) {
                        return util_getOrSet(getStore(win), key, getter);
                    }
                };
            }));
        }
        function getInstanceID() {
            return globalStore("instance").getOrSet("instanceID", uniqueID);
        }
        function resolveHelloPromise(win, _ref) {
            var domain = _ref.domain;
            var helloPromises = windowStore("helloPromises");
            var existingPromise = helloPromises.get(win);
            existingPromise && existingPromise.resolve({
                domain: domain
            });
            var newPromise = promise_ZalgoPromise.resolve({
                domain: domain
            });
            helloPromises.set(win, newPromise);
            return newPromise;
        }
        function sayHello(win, _ref4) {
            return (0, _ref4.send)(win, "postrobot_hello", {
                instanceID: getInstanceID()
            }, {
                domain: "*",
                timeout: -1
            }).then((function(_ref5) {
                var origin = _ref5.origin, instanceID = _ref5.data.instanceID;
                resolveHelloPromise(win, {
                    domain: origin
                });
                return {
                    win: win,
                    domain: origin,
                    instanceID: instanceID
                };
            }));
        }
        function getWindowInstanceID(win, _ref6) {
            var send = _ref6.send;
            return windowStore("windowInstanceIDPromises").getOrSet(win, (function() {
                return sayHello(win, {
                    send: send
                }).then((function(_ref7) {
                    return _ref7.instanceID;
                }));
            }));
        }
        function awaitWindowHello(win, timeout, name) {
            void 0 === timeout && (timeout = 5e3);
            void 0 === name && (name = "Window");
            var promise = function(win) {
                return windowStore("helloPromises").getOrSet(win, (function() {
                    return new promise_ZalgoPromise;
                }));
            }(win);
            -1 !== timeout && (promise = promise.timeout(timeout, new Error(name + " did not load after " + timeout + "ms")));
            return promise;
        }
        function markWindowKnown(win) {
            windowStore("knownWindows").set(win, !0);
        }
        function isSerializedType(item) {
            return "object" == typeof item && null !== item && "string" == typeof item.__type__;
        }
        function determineType(val) {
            return void 0 === val ? "undefined" : null === val ? "null" : Array.isArray(val) ? "array" : "function" == typeof val ? "function" : "object" == typeof val ? val instanceof Error ? "error" : "function" == typeof val.then ? "promise" : "[object RegExp]" === {}.toString.call(val) ? "regex" : "[object Date]" === {}.toString.call(val) ? "date" : "object" : "string" == typeof val ? "string" : "number" == typeof val ? "number" : "boolean" == typeof val ? "boolean" : void 0;
        }
        function serializeType(type, val) {
            return {
                __type__: type,
                __val__: val
            };
        }
        var _SERIALIZER;
        var SERIALIZER = ((_SERIALIZER = {}).function = function() {}, _SERIALIZER.error = function(_ref) {
            return serializeType("error", {
                message: _ref.message,
                stack: _ref.stack,
                code: _ref.code,
                data: _ref.data
            });
        }, _SERIALIZER.promise = function() {}, _SERIALIZER.regex = function(val) {
            return serializeType("regex", val.source);
        }, _SERIALIZER.date = function(val) {
            return serializeType("date", val.toJSON());
        }, _SERIALIZER.array = function(val) {
            return val;
        }, _SERIALIZER.object = function(val) {
            return val;
        }, _SERIALIZER.string = function(val) {
            return val;
        }, _SERIALIZER.number = function(val) {
            return val;
        }, _SERIALIZER.boolean = function(val) {
            return val;
        }, _SERIALIZER.null = function(val) {
            return val;
        }, _SERIALIZER[void 0] = function(val) {
            return serializeType("undefined", val);
        }, _SERIALIZER);
        var defaultSerializers = {};
        var _DESERIALIZER;
        var DESERIALIZER = ((_DESERIALIZER = {}).function = function() {
            throw new Error("Function serialization is not implemented; nothing to deserialize");
        }, _DESERIALIZER.error = function(_ref2) {
            var stack = _ref2.stack, code = _ref2.code, data = _ref2.data;
            var error = new Error(_ref2.message);
            error.code = code;
            data && (error.data = data);
            error.stack = stack + "\n\n" + error.stack;
            return error;
        }, _DESERIALIZER.promise = function() {
            throw new Error("Promise serialization is not implemented; nothing to deserialize");
        }, _DESERIALIZER.regex = function(val) {
            return new RegExp(val);
        }, _DESERIALIZER.date = function(val) {
            return new Date(val);
        }, _DESERIALIZER.array = function(val) {
            return val;
        }, _DESERIALIZER.object = function(val) {
            return val;
        }, _DESERIALIZER.string = function(val) {
            return val;
        }, _DESERIALIZER.number = function(val) {
            return val;
        }, _DESERIALIZER.boolean = function(val) {
            return val;
        }, _DESERIALIZER.null = function(val) {
            return val;
        }, _DESERIALIZER[void 0] = function() {}, _DESERIALIZER);
        var defaultDeserializers = {};
        function needsBridgeForBrowser() {
            return !!utils_getUserAgent(window).match(/MSIE|trident|edge\/12|edge\/13/i);
        }
        function needsBridgeForWin(win) {
            return !isSameTopWindow(window, win);
        }
        function needsBridgeForDomain(domain, win) {
            if (domain) {
                if (getDomain() !== getDomainFromUrl(domain)) return !0;
            } else if (win && !isSameDomain(win)) return !0;
            return !1;
        }
        function needsBridge(_ref) {
            var win = _ref.win, domain = _ref.domain;
            return !(!needsBridgeForBrowser() || domain && !needsBridgeForDomain(domain, win) || win && !needsBridgeForWin(win));
        }
        function getBridgeName(domain) {
            return "__postrobot_bridge___" + (domain = domain || getDomainFromUrl(domain)).replace(/[^a-zA-Z0-9]+/g, "_");
        }
        function isBridge() {
            return Boolean(window.name && window.name === getBridgeName(getDomain()));
        }
        var documentBodyReady = new promise_ZalgoPromise((function(resolve) {
            if (window.document && window.document.body) return resolve(window.document.body);
            var interval = setInterval((function() {
                if (window.document && window.document.body) {
                    clearInterval(interval);
                    return resolve(window.document.body);
                }
            }), 10);
        }));
        function registerRemoteWindow(win) {
            windowStore("remoteWindowPromises").getOrSet(win, (function() {
                return new promise_ZalgoPromise;
            }));
        }
        function findRemoteWindow(win) {
            var remoteWinPromise = windowStore("remoteWindowPromises").get(win);
            if (!remoteWinPromise) throw new Error("Remote window promise not found");
            return remoteWinPromise;
        }
        function registerRemoteSendMessage(win, domain, sendMessage) {
            findRemoteWindow(win).resolve((function(remoteWin, remoteDomain, message) {
                if (remoteWin !== win) throw new Error("Remote window does not match window");
                if (!matchDomain(remoteDomain, domain)) throw new Error("Remote domain " + remoteDomain + " does not match domain " + domain);
                sendMessage.fireAndForget(message);
            }));
        }
        function rejectRemoteSendMessage(win, err) {
            findRemoteWindow(win).reject(err).catch(src_util_noop);
        }
        function linkWindow(_ref3) {
            var win = _ref3.win, name = _ref3.name, domain = _ref3.domain;
            var popupWindowsByName = globalStore("popupWindowsByName");
            var popupWindowsByWin = windowStore("popupWindowsByWin");
            for (var _i2 = 0, _popupWindowsByName$k2 = popupWindowsByName.keys(); _i2 < _popupWindowsByName$k2.length; _i2++) {
                var winName = _popupWindowsByName$k2[_i2];
                var _details = popupWindowsByName.get(winName);
                _details && !isWindowClosed(_details.win) || popupWindowsByName.del(winName);
            }
            if (isWindowClosed(win)) return {
                win: win,
                name: name,
                domain: domain
            };
            var details = popupWindowsByWin.getOrSet(win, (function() {
                return name ? popupWindowsByName.getOrSet(name, (function() {
                    return {
                        win: win,
                        name: name
                    };
                })) : {
                    win: win
                };
            }));
            if (details.win && details.win !== win) throw new Error("Different window already linked for window: " + (name || "undefined"));
            if (name) {
                details.name = name;
                popupWindowsByName.set(name, details);
            }
            if (domain) {
                details.domain = domain;
                registerRemoteWindow(win);
            }
            popupWindowsByWin.set(win, details);
            return details;
        }
        function setupBridge(_ref) {
            var on = _ref.on, send = _ref.send, receiveMessage = _ref.receiveMessage;
            windowOpen = window.open, window.open = function(url, name, options, last) {
                var win = windowOpen.call(this, normalizeMockUrl(url), name, options, last);
                if (!win) return win;
                linkWindow({
                    win: win,
                    name: name,
                    domain: url ? getDomainFromUrl(url) : null
                });
                return win;
            };
            var windowOpen;
            !function(_ref) {
                var on = _ref.on, send = _ref.send, receiveMessage = _ref.receiveMessage;
                var popupWindowsByName = globalStore("popupWindowsByName");
                on("postrobot_open_tunnel", (function(_ref2) {
                    var source = _ref2.source, origin = _ref2.origin, data = _ref2.data;
                    var bridgePromise = globalStore("bridges").get(origin);
                    if (!bridgePromise) throw new Error("Can not find bridge promise for domain " + origin);
                    return bridgePromise.then((function(bridge) {
                        if (source !== bridge) throw new Error("Message source does not matched registered bridge for domain " + origin);
                        if (!data.name) throw new Error("Register window expected to be passed window name");
                        if (!data.sendMessage) throw new Error("Register window expected to be passed sendMessage method");
                        if (!popupWindowsByName.has(data.name)) throw new Error("Window with name " + data.name + " does not exist, or was not opened by this window");
                        var getWindowDetails = function() {
                            return popupWindowsByName.get(data.name);
                        };
                        if (!getWindowDetails().domain) throw new Error("We do not have a registered domain for window " + data.name);
                        if (getWindowDetails().domain !== origin) throw new Error("Message origin " + origin + " does not matched registered window origin " + (getWindowDetails().domain || "unknown"));
                        registerRemoteSendMessage(getWindowDetails().win, origin, data.sendMessage);
                        return {
                            sendMessage: function(message) {
                                if (window && !window.closed && getWindowDetails()) {
                                    var domain = getWindowDetails().domain;
                                    if (domain) try {
                                        receiveMessage({
                                            data: message,
                                            origin: domain,
                                            source: getWindowDetails().win
                                        }, {
                                            on: on,
                                            send: send
                                        });
                                    } catch (err) {
                                        promise_ZalgoPromise.reject(err);
                                    }
                                }
                            }
                        };
                    }));
                }));
            }({
                on: on,
                send: send,
                receiveMessage: receiveMessage
            });
            !function(_ref2) {
                var send = _ref2.send;
                global_getGlobal(window).openTunnelToParent = function(_ref3) {
                    var name = _ref3.name, source = _ref3.source, canary = _ref3.canary, sendMessage = _ref3.sendMessage;
                    var tunnelWindows = globalStore("tunnelWindows");
                    var parentWindow = utils_getParent(window);
                    if (!parentWindow) throw new Error("No parent window found to open tunnel to");
                    var id = function(_ref) {
                        var name = _ref.name, source = _ref.source, canary = _ref.canary, sendMessage = _ref.sendMessage;
                        !function() {
                            var tunnelWindows = globalStore("tunnelWindows");
                            for (var _i2 = 0, _tunnelWindows$keys2 = tunnelWindows.keys(); _i2 < _tunnelWindows$keys2.length; _i2++) {
                                var key = _tunnelWindows$keys2[_i2];
                                isWindowClosed(tunnelWindows[key].source) && tunnelWindows.del(key);
                            }
                        }();
                        var id = uniqueID();
                        globalStore("tunnelWindows").set(id, {
                            name: name,
                            source: source,
                            canary: canary,
                            sendMessage: sendMessage
                        });
                        return id;
                    }({
                        name: name,
                        source: source,
                        canary: canary,
                        sendMessage: sendMessage
                    });
                    return send(parentWindow, "postrobot_open_tunnel", {
                        name: name,
                        sendMessage: function() {
                            var tunnelWindow = tunnelWindows.get(id);
                            if (tunnelWindow && tunnelWindow.source && !isWindowClosed(tunnelWindow.source)) {
                                try {
                                    tunnelWindow.canary();
                                } catch (err) {
                                    return;
                                }
                                tunnelWindow.sendMessage.apply(this, arguments);
                            }
                        }
                    }, {
                        domain: "*"
                    });
                };
            }({
                send: send
            });
            !function(_ref) {
                var on = _ref.on, send = _ref.send, receiveMessage = _ref.receiveMessage;
                promise_ZalgoPromise.try((function() {
                    var opener = getOpener(window);
                    if (opener && needsBridge({
                        win: opener
                    })) {
                        registerRemoteWindow(opener);
                        return (win = opener, windowStore("remoteBridgeAwaiters").getOrSet(win, (function() {
                            return promise_ZalgoPromise.try((function() {
                                var frame = getFrameByName(win, getBridgeName(getDomain()));
                                if (frame) return isSameDomain(frame) && global_getGlobal(assertSameDomain(frame)) ? frame : new promise_ZalgoPromise((function(resolve) {
                                    var interval;
                                    var timeout;
                                    interval = setInterval((function() {
                                        if (frame && isSameDomain(frame) && global_getGlobal(assertSameDomain(frame))) {
                                            clearInterval(interval);
                                            clearTimeout(timeout);
                                            return resolve(frame);
                                        }
                                    }), 100);
                                    timeout = setTimeout((function() {
                                        clearInterval(interval);
                                        return resolve();
                                    }), 2e3);
                                }));
                            }));
                        }))).then((function(bridge) {
                            return bridge ? window.name ? global_getGlobal(assertSameDomain(bridge)).openTunnelToParent({
                                name: window.name,
                                source: window,
                                canary: function() {},
                                sendMessage: function(message) {
                                    try {
                                        window;
                                    } catch (err) {
                                        return;
                                    }
                                    if (window && !window.closed) try {
                                        receiveMessage({
                                            data: message,
                                            origin: this.origin,
                                            source: this.source
                                        }, {
                                            on: on,
                                            send: send
                                        });
                                    } catch (err) {
                                        promise_ZalgoPromise.reject(err);
                                    }
                                }
                            }).then((function(_ref2) {
                                var source = _ref2.source, origin = _ref2.origin, data = _ref2.data;
                                if (source !== opener) throw new Error("Source does not match opener");
                                registerRemoteSendMessage(source, origin, data.sendMessage);
                            })).catch((function(err) {
                                rejectRemoteSendMessage(opener, err);
                                throw err;
                            })) : rejectRemoteSendMessage(opener, new Error("Can not register with opener: window does not have a name")) : rejectRemoteSendMessage(opener, new Error("Can not register with opener: no bridge found in opener"));
                        }));
                        var win;
                    }
                }));
            }({
                on: on,
                send: send,
                receiveMessage: receiveMessage
            });
        }
        function cleanupProxyWindows() {
            var idToProxyWindow = globalStore("idToProxyWindow");
            for (var _i2 = 0, _idToProxyWindow$keys2 = idToProxyWindow.keys(); _i2 < _idToProxyWindow$keys2.length; _i2++) {
                var id = _idToProxyWindow$keys2[_i2];
                idToProxyWindow.get(id).shouldClean() && idToProxyWindow.del(id);
            }
        }
        function getSerializedWindow(winPromise, _ref) {
            var send = _ref.send, _ref$id = _ref.id, id = void 0 === _ref$id ? uniqueID() : _ref$id;
            var windowNamePromise = winPromise.then((function(win) {
                if (isSameDomain(win)) return assertSameDomain(win).name;
            }));
            var windowTypePromise = winPromise.then((function(window) {
                if (isWindowClosed(window)) throw new Error("Window is closed, can not determine type");
                return getOpener(window) ? WINDOW_TYPE.POPUP : WINDOW_TYPE.IFRAME;
            }));
            windowNamePromise.catch(src_util_noop);
            windowTypePromise.catch(src_util_noop);
            var getName = function() {
                return winPromise.then((function(win) {
                    if (!isWindowClosed(win)) return isSameDomain(win) ? assertSameDomain(win).name : windowNamePromise;
                }));
            };
            return {
                id: id,
                getType: function() {
                    return windowTypePromise;
                },
                getInstanceID: memoizePromise((function() {
                    return winPromise.then((function(win) {
                        return getWindowInstanceID(win, {
                            send: send
                        });
                    }));
                })),
                close: function() {
                    return winPromise.then(closeWindow);
                },
                getName: getName,
                focus: function() {
                    return winPromise.then((function(win) {
                        win.focus();
                    }));
                },
                isClosed: function() {
                    return winPromise.then((function(win) {
                        return isWindowClosed(win);
                    }));
                },
                setLocation: function(href, opts) {
                    void 0 === opts && (opts = {});
                    return winPromise.then((function(win) {
                        var domain = window.location.protocol + "//" + window.location.host;
                        var _opts$method = opts.method, method = void 0 === _opts$method ? "get" : _opts$method, body = opts.body;
                        if (0 === href.indexOf("/")) href = "" + domain + href; else if (!href.match(/^https?:\/\//) && 0 !== href.indexOf(domain)) throw new Error("Expected url to be http or https url, or absolute path, got " + JSON.stringify(href));
                        if ("post" === method) return getName().then((function(name) {
                            if (!name) throw new Error("Can not post to window without target name");
                            !function(_ref3) {
                                var url = _ref3.url, target = _ref3.target, body = _ref3.body, _ref3$method = _ref3.method, method = void 0 === _ref3$method ? "post" : _ref3$method;
                                var form = document.createElement("form");
                                form.setAttribute("target", target);
                                form.setAttribute("method", method);
                                form.setAttribute("action", url);
                                form.style.display = "none";
                                if (body) for (var _i24 = 0, _Object$keys4 = Object.keys(body); _i24 < _Object$keys4.length; _i24++) {
                                    var _body$key;
                                    var key = _Object$keys4[_i24];
                                    var input = document.createElement("input");
                                    input.setAttribute("name", key);
                                    input.setAttribute("value", null == (_body$key = body[key]) ? void 0 : _body$key.toString());
                                    form.appendChild(input);
                                }
                                getBody().appendChild(form);
                                form.submit();
                                getBody().removeChild(form);
                            }({
                                url: href,
                                target: name,
                                method: method,
                                body: body
                            });
                        }));
                        if ("get" !== method) throw new Error("Unsupported method: " + method);
                        if (isSameDomain(win)) try {
                            if (win.location && "function" == typeof win.location.replace) {
                                win.location.replace(href);
                                return;
                            }
                        } catch (err) {}
                        win.location = href;
                    }));
                },
                setName: function(name) {
                    return winPromise.then((function(win) {
                        linkWindow({
                            win: win,
                            name: name
                        });
                        var sameDomain = isSameDomain(win);
                        var frame = getFrameForWindow(win);
                        if (!sameDomain) throw new Error("Can not set name for cross-domain window: " + name);
                        assertSameDomain(win).name = name;
                        frame && frame.setAttribute("name", name);
                        windowNamePromise = promise_ZalgoPromise.resolve(name);
                    }));
                }
            };
        }
        var window_ProxyWindow = function() {
            function ProxyWindow(_ref2) {
                var send = _ref2.send, win = _ref2.win, serializedWindow = _ref2.serializedWindow;
                this.id = void 0;
                this.isProxyWindow = !0;
                this.serializedWindow = void 0;
                this.actualWindow = void 0;
                this.actualWindowPromise = void 0;
                this.send = void 0;
                this.name = void 0;
                this.actualWindowPromise = new promise_ZalgoPromise;
                this.serializedWindow = serializedWindow || getSerializedWindow(this.actualWindowPromise, {
                    send: send
                });
                globalStore("idToProxyWindow").set(this.getID(), this);
                win && this.setWindow(win, {
                    send: send
                });
            }
            var _proto = ProxyWindow.prototype;
            _proto.getID = function() {
                return this.serializedWindow.id;
            };
            _proto.getType = function() {
                return this.serializedWindow.getType();
            };
            _proto.isPopup = function() {
                return this.getType().then((function(type) {
                    return type === WINDOW_TYPE.POPUP;
                }));
            };
            _proto.setLocation = function(href, opts) {
                var _this = this;
                return this.serializedWindow.setLocation(href, opts).then((function() {
                    return _this;
                }));
            };
            _proto.getName = function() {
                return this.serializedWindow.getName();
            };
            _proto.setName = function(name) {
                var _this2 = this;
                return this.serializedWindow.setName(name).then((function() {
                    return _this2;
                }));
            };
            _proto.close = function() {
                var _this3 = this;
                return this.serializedWindow.close().then((function() {
                    return _this3;
                }));
            };
            _proto.focus = function() {
                var _this4 = this;
                var isPopupPromise = this.isPopup();
                var getNamePromise = this.getName();
                var reopenPromise = promise_ZalgoPromise.hash({
                    isPopup: isPopupPromise,
                    name: getNamePromise
                }).then((function(_ref3) {
                    var name = _ref3.name;
                    _ref3.isPopup && name && window.open("", name);
                }));
                var focusPromise = this.serializedWindow.focus();
                return promise_ZalgoPromise.all([ reopenPromise, focusPromise ]).then((function() {
                    return _this4;
                }));
            };
            _proto.isClosed = function() {
                return this.serializedWindow.isClosed();
            };
            _proto.getWindow = function() {
                return this.actualWindow;
            };
            _proto.setWindow = function(win, _ref4) {
                var send = _ref4.send;
                this.actualWindow = win;
                this.actualWindowPromise.resolve(this.actualWindow);
                this.serializedWindow = getSerializedWindow(this.actualWindowPromise, {
                    send: send,
                    id: this.getID()
                });
                windowStore("winToProxyWindow").set(win, this);
            };
            _proto.awaitWindow = function() {
                return this.actualWindowPromise;
            };
            _proto.matchWindow = function(win, _ref5) {
                var _this5 = this;
                var send = _ref5.send;
                return promise_ZalgoPromise.try((function() {
                    return _this5.actualWindow ? win === _this5.actualWindow : promise_ZalgoPromise.hash({
                        proxyInstanceID: _this5.getInstanceID(),
                        knownWindowInstanceID: getWindowInstanceID(win, {
                            send: send
                        })
                    }).then((function(_ref6) {
                        var match = _ref6.proxyInstanceID === _ref6.knownWindowInstanceID;
                        match && _this5.setWindow(win, {
                            send: send
                        });
                        return match;
                    }));
                }));
            };
            _proto.unwrap = function() {
                return this.actualWindow || this;
            };
            _proto.getInstanceID = function() {
                return this.serializedWindow.getInstanceID();
            };
            _proto.shouldClean = function() {
                return Boolean(this.actualWindow && isWindowClosed(this.actualWindow));
            };
            _proto.serialize = function() {
                return this.serializedWindow;
            };
            ProxyWindow.unwrap = function(win) {
                return ProxyWindow.isProxyWindow(win) ? win.unwrap() : win;
            };
            ProxyWindow.serialize = function(win, _ref7) {
                var send = _ref7.send;
                cleanupProxyWindows();
                return ProxyWindow.toProxyWindow(win, {
                    send: send
                }).serialize();
            };
            ProxyWindow.deserialize = function(serializedWindow, _ref8) {
                var send = _ref8.send;
                cleanupProxyWindows();
                return globalStore("idToProxyWindow").get(serializedWindow.id) || new ProxyWindow({
                    serializedWindow: serializedWindow,
                    send: send
                });
            };
            ProxyWindow.isProxyWindow = function(obj) {
                return Boolean(obj && !isWindow(obj) && obj.isProxyWindow);
            };
            ProxyWindow.toProxyWindow = function(win, _ref9) {
                var send = _ref9.send;
                cleanupProxyWindows();
                if (ProxyWindow.isProxyWindow(win)) return win;
                var actualWindow = win;
                return windowStore("winToProxyWindow").get(actualWindow) || new ProxyWindow({
                    win: actualWindow,
                    send: send
                });
            };
            return ProxyWindow;
        }();
        function addMethod(id, val, name, source, domain) {
            var methodStore = windowStore("methodStore");
            var proxyWindowMethods = globalStore("proxyWindowMethods");
            if (window_ProxyWindow.isProxyWindow(source)) proxyWindowMethods.set(id, {
                val: val,
                name: name,
                domain: domain,
                source: source
            }); else {
                proxyWindowMethods.del(id);
                methodStore.getOrSet(source, (function() {
                    return {};
                }))[id] = {
                    domain: domain,
                    name: name,
                    val: val,
                    source: source
                };
            }
        }
        function lookupMethod(source, id) {
            var methodStore = windowStore("methodStore");
            var proxyWindowMethods = globalStore("proxyWindowMethods");
            return methodStore.getOrSet(source, (function() {
                return {};
            }))[id] || proxyWindowMethods.get(id);
        }
        function function_serializeFunction(destination, domain, val, key, _ref3) {
            on = (_ref = {
                on: _ref3.on,
                send: _ref3.send
            }).on, send = _ref.send, globalStore("builtinListeners").getOrSet("functionCalls", (function() {
                return on("postrobot_method", {
                    domain: "*"
                }, (function(_ref2) {
                    var source = _ref2.source, origin = _ref2.origin, data = _ref2.data;
                    var id = data.id, name = data.name;
                    var meth = lookupMethod(source, id);
                    if (!meth) throw new Error("Could not find method '" + name + "' with id: " + data.id + " in " + getDomain(window));
                    var methodSource = meth.source, domain = meth.domain, val = meth.val;
                    return promise_ZalgoPromise.try((function() {
                        if (!matchDomain(domain, origin)) throw new Error("Method '" + data.name + "' domain " + JSON.stringify(util_isRegex(meth.domain) ? meth.domain.source : meth.domain) + " does not match origin " + origin + " in " + getDomain(window));
                        if (window_ProxyWindow.isProxyWindow(methodSource)) return methodSource.matchWindow(source, {
                            send: send
                        }).then((function(match) {
                            if (!match) throw new Error("Method call '" + data.name + "' failed - proxy window does not match source in " + getDomain(window));
                        }));
                    })).then((function() {
                        return val.apply({
                            source: source,
                            origin: origin
                        }, data.args);
                    }), (function(err) {
                        return promise_ZalgoPromise.try((function() {
                            if (val.onError) return val.onError(err);
                        })).then((function() {
                            err.stack && (err.stack = "Remote call to " + name + "(" + function(args) {
                                void 0 === args && (args = []);
                                return arrayFrom(args).map((function(arg) {
                                    return "string" == typeof arg ? "'" + arg + "'" : void 0 === arg ? "undefined" : null === arg ? "null" : "boolean" == typeof arg ? arg.toString() : Array.isArray(arg) ? "[ ... ]" : "object" == typeof arg ? "{ ... }" : "function" == typeof arg ? "() => { ... }" : "<" + typeof arg + ">";
                                })).join(", ");
                            }(data.args) + ") failed\n\n" + err.stack);
                            throw err;
                        }));
                    })).then((function(result) {
                        return {
                            result: result,
                            id: id,
                            name: name
                        };
                    }));
                }));
            }));
            var _ref, on, send;
            var id = val.__id__ || uniqueID();
            destination = window_ProxyWindow.unwrap(destination);
            var name = val.__name__ || val.name || key;
            "string" == typeof name && "function" == typeof name.indexOf && 0 === name.indexOf("anonymous::") && (name = name.replace("anonymous::", key + "::"));
            if (window_ProxyWindow.isProxyWindow(destination)) {
                addMethod(id, val, name, destination, domain);
                destination.awaitWindow().then((function(win) {
                    addMethod(id, val, name, win, domain);
                }));
            } else addMethod(id, val, name, destination, domain);
            return serializeType("cross_domain_function", {
                id: id,
                name: name
            });
        }
        function serializeMessage(destination, domain, obj, _ref) {
            var _serialize;
            var on = _ref.on, send = _ref.send;
            return function(obj, serializers) {
                void 0 === serializers && (serializers = defaultSerializers);
                var result = JSON.stringify(obj, (function(key) {
                    var val = this[key];
                    if (isSerializedType(this)) return val;
                    var type = determineType(val);
                    if (!type) return val;
                    var serializer = serializers[type] || SERIALIZER[type];
                    return serializer ? serializer(val, key) : val;
                }));
                return void 0 === result ? "undefined" : result;
            }(obj, ((_serialize = {}).promise = function(val, key) {
                return function(destination, domain, val, key, _ref) {
                    return serializeType("cross_domain_zalgo_promise", {
                        then: function_serializeFunction(destination, domain, (function(resolve, reject) {
                            return val.then(resolve, reject);
                        }), key, {
                            on: _ref.on,
                            send: _ref.send
                        })
                    });
                }(destination, domain, val, key, {
                    on: on,
                    send: send
                });
            }, _serialize.function = function(val, key) {
                return function_serializeFunction(destination, domain, val, key, {
                    on: on,
                    send: send
                });
            }, _serialize.object = function(val) {
                return isWindow(val) || window_ProxyWindow.isProxyWindow(val) ? serializeType("cross_domain_window", window_ProxyWindow.serialize(val, {
                    send: send
                })) : val;
            }, _serialize));
        }
        function deserializeMessage(source, origin, message, _ref2) {
            var _deserialize;
            var send = _ref2.send;
            return function(str, deserializers) {
                void 0 === deserializers && (deserializers = defaultDeserializers);
                if ("undefined" !== str) return JSON.parse(str, (function(key, val) {
                    if (isSerializedType(this)) return val;
                    var type;
                    var value;
                    if (isSerializedType(val)) {
                        type = val.__type__;
                        value = val.__val__;
                    } else {
                        type = determineType(val);
                        value = val;
                    }
                    if (!type) return value;
                    var deserializer = deserializers[type] || DESERIALIZER[type];
                    return deserializer ? deserializer(value, key) : value;
                }));
            }(message, ((_deserialize = {}).cross_domain_zalgo_promise = function(serializedPromise) {
                return function(source, origin, _ref2) {
                    return new promise_ZalgoPromise(_ref2.then);
                }(0, 0, serializedPromise);
            }, _deserialize.cross_domain_function = function(serializedFunction) {
                return function(source, origin, _ref4, _ref5) {
                    var id = _ref4.id, name = _ref4.name;
                    var send = _ref5.send;
                    var getDeserializedFunction = function(opts) {
                        void 0 === opts && (opts = {});
                        function crossDomainFunctionWrapper() {
                            var _arguments = arguments;
                            return window_ProxyWindow.toProxyWindow(source, {
                                send: send
                            }).awaitWindow().then((function(win) {
                                var meth = lookupMethod(win, id);
                                if (meth && meth.val !== crossDomainFunctionWrapper) return meth.val.apply({
                                    source: window,
                                    origin: getDomain()
                                }, _arguments);
                                var _args = [].slice.call(_arguments);
                                return opts.fireAndForget ? send(win, "postrobot_method", {
                                    id: id,
                                    name: name,
                                    args: _args
                                }, {
                                    domain: origin,
                                    fireAndForget: !0
                                }) : send(win, "postrobot_method", {
                                    id: id,
                                    name: name,
                                    args: _args
                                }, {
                                    domain: origin,
                                    fireAndForget: !1
                                }).then((function(res) {
                                    return res.data.result;
                                }));
                            })).catch((function(err) {
                                throw err;
                            }));
                        }
                        crossDomainFunctionWrapper.__name__ = name;
                        crossDomainFunctionWrapper.__origin__ = origin;
                        crossDomainFunctionWrapper.__source__ = source;
                        crossDomainFunctionWrapper.__id__ = id;
                        crossDomainFunctionWrapper.origin = origin;
                        return crossDomainFunctionWrapper;
                    };
                    var crossDomainFunctionWrapper = getDeserializedFunction();
                    crossDomainFunctionWrapper.fireAndForget = getDeserializedFunction({
                        fireAndForget: !0
                    });
                    return crossDomainFunctionWrapper;
                }(source, origin, serializedFunction, {
                    send: send
                });
            }, _deserialize.cross_domain_window = function(serializedWindow) {
                return window_ProxyWindow.deserialize(serializedWindow, {
                    send: send
                });
            }, _deserialize));
        }
        var SEND_MESSAGE_STRATEGIES = {};
        SEND_MESSAGE_STRATEGIES.postrobot_post_message = function(win, serializedMessage, domain) {
            0 === domain.indexOf("file:") && (domain = "*");
            win.postMessage(serializedMessage, domain);
        };
        SEND_MESSAGE_STRATEGIES.postrobot_bridge = function(win, serializedMessage, domain) {
            if (!needsBridgeForBrowser() && !isBridge()) throw new Error("Bridge not needed for browser");
            if (isSameDomain(win)) throw new Error("Post message through bridge disabled between same domain windows");
            if (!1 !== isSameTopWindow(window, win)) throw new Error("Can only use bridge to communicate between two different windows, not between frames");
            !function(win, domain, message) {
                var messagingChild = isOpener(window, win);
                var messagingParent = isOpener(win, window);
                if (!messagingChild && !messagingParent) throw new Error("Can only send messages to and from parent and popup windows");
                findRemoteWindow(win).then((function(sendMessage) {
                    return sendMessage(win, domain, message);
                }));
            }(win, domain, serializedMessage);
        };
        SEND_MESSAGE_STRATEGIES.postrobot_global = function(win, serializedMessage) {
            if (!utils_getUserAgent(window).match(/MSIE|rv:11|trident|edge\/12|edge\/13/i)) throw new Error("Global messaging not needed for browser");
            if (!isSameDomain(win)) throw new Error("Post message through global disabled between different domain windows");
            if (!1 !== isSameTopWindow(window, win)) throw new Error("Can only use global to communicate between two different windows, not between frames");
            var foreignGlobal = global_getGlobal(win);
            if (!foreignGlobal) throw new Error("Can not find postRobot global on foreign window");
            foreignGlobal.receiveMessage({
                source: window,
                origin: getDomain(),
                data: serializedMessage
            });
        };
        function send_sendMessage(win, domain, message, _ref2) {
            var on = _ref2.on, send = _ref2.send;
            return promise_ZalgoPromise.try((function() {
                var domainBuffer = windowStore().getOrSet(win, (function() {
                    return {};
                }));
                domainBuffer.buffer = domainBuffer.buffer || [];
                domainBuffer.buffer.push(message);
                domainBuffer.flush = domainBuffer.flush || promise_ZalgoPromise.flush().then((function() {
                    if (isWindowClosed(win)) throw new Error("Window is closed");
                    var serializedMessage = serializeMessage(win, domain, ((_ref = {}).__post_robot_10_0_44__ = domainBuffer.buffer || [], 
                    _ref), {
                        on: on,
                        send: send
                    });
                    var _ref;
                    delete domainBuffer.buffer;
                    var strategies = Object.keys(SEND_MESSAGE_STRATEGIES);
                    var errors = [];
                    for (var _i2 = 0; _i2 < strategies.length; _i2++) {
                        var strategyName = strategies[_i2];
                        try {
                            SEND_MESSAGE_STRATEGIES[strategyName](win, serializedMessage, domain);
                        } catch (err) {
                            errors.push(err);
                        }
                    }
                    if (errors.length === strategies.length) throw new Error("All post-robot messaging strategies failed:\n\n" + errors.map((function(err, i) {
                        return i + ". " + stringifyError(err);
                    })).join("\n\n"));
                }));
                return domainBuffer.flush.then((function() {
                    delete domainBuffer.flush;
                }));
            })).then(src_util_noop);
        }
        function getResponseListener(hash) {
            return globalStore("responseListeners").get(hash);
        }
        function deleteResponseListener(hash) {
            globalStore("responseListeners").del(hash);
        }
        function isResponseListenerErrored(hash) {
            return globalStore("erroredResponseListeners").has(hash);
        }
        function getRequestListener(_ref) {
            var name = _ref.name, win = _ref.win, domain = _ref.domain;
            var requestListeners = windowStore("requestListeners");
            "*" === win && (win = null);
            "*" === domain && (domain = null);
            if (!name) throw new Error("Name required to get request listener");
            for (var _i4 = 0, _ref3 = [ win, getWildcard() ]; _i4 < _ref3.length; _i4++) {
                var winQualifier = _ref3[_i4];
                if (winQualifier) {
                    var nameListeners = requestListeners.get(winQualifier);
                    if (nameListeners) {
                        var domainListeners = nameListeners[name];
                        if (domainListeners) {
                            if (domain && "string" == typeof domain) {
                                if (domainListeners[domain]) return domainListeners[domain];
                                if (domainListeners.__domain_regex__) for (var _i6 = 0, _domainListeners$__DO2 = domainListeners.__domain_regex__; _i6 < _domainListeners$__DO2.length; _i6++) {
                                    var _domainListeners$__DO3 = _domainListeners$__DO2[_i6], listener = _domainListeners$__DO3.listener;
                                    if (matchDomain(_domainListeners$__DO3.regex, domain)) return listener;
                                }
                            }
                            if (domainListeners["*"]) return domainListeners["*"];
                        }
                    }
                }
            }
        }
        function handleRequest(source, origin, message, _ref) {
            var on = _ref.on, send = _ref.send;
            var options = getRequestListener({
                name: message.name,
                win: source,
                domain: origin
            });
            var logName = "postrobot_method" === message.name && message.data && "string" == typeof message.data.name ? message.data.name + "()" : message.name;
            function sendResponse(ack, data, error) {
                return promise_ZalgoPromise.flush().then((function() {
                    if (!message.fireAndForget && !isWindowClosed(source)) try {
                        return send_sendMessage(source, origin, {
                            id: uniqueID(),
                            origin: getDomain(window),
                            type: "postrobot_message_response",
                            hash: message.hash,
                            name: message.name,
                            ack: ack,
                            data: data,
                            error: error
                        }, {
                            on: on,
                            send: send
                        });
                    } catch (err) {
                        throw new Error("Send response message failed for " + logName + " in " + getDomain() + "\n\n" + stringifyError(err));
                    }
                }));
            }
            return promise_ZalgoPromise.all([ promise_ZalgoPromise.flush().then((function() {
                if (!message.fireAndForget && !isWindowClosed(source)) try {
                    return send_sendMessage(source, origin, {
                        id: uniqueID(),
                        origin: getDomain(window),
                        type: "postrobot_message_ack",
                        hash: message.hash,
                        name: message.name
                    }, {
                        on: on,
                        send: send
                    });
                } catch (err) {
                    throw new Error("Send ack message failed for " + logName + " in " + getDomain() + "\n\n" + stringifyError(err));
                }
            })), promise_ZalgoPromise.try((function() {
                if (!options) throw new Error("No handler found for post message: " + message.name + " from " + origin + " in " + window.location.protocol + "//" + window.location.host + window.location.pathname);
                if (!matchDomain(options.domain, origin)) throw new Error("Request origin " + origin + " does not match domain " + options.domain.toString());
                return options.handler({
                    source: source,
                    origin: origin,
                    data: message.data
                });
            })).then((function(data) {
                return sendResponse("success", data);
            }), (function(error) {
                return sendResponse("error", null, error);
            })) ]).then(src_util_noop).catch((function(err) {
                if (options && options.handleError) return options.handleError(err);
                throw err;
            }));
        }
        function handleAck(source, origin, message) {
            if (!isResponseListenerErrored(message.hash)) {
                var options = getResponseListener(message.hash);
                if (!options) throw new Error("No handler found for post message ack for message: " + message.name + " from " + origin + " in " + window.location.protocol + "//" + window.location.host + window.location.pathname);
                try {
                    if (!matchDomain(options.domain, origin)) throw new Error("Ack origin " + origin + " does not match domain " + options.domain.toString());
                    if (source !== options.win) throw new Error("Ack source does not match registered window");
                } catch (err) {
                    options.promise.reject(err);
                }
                options.ack = !0;
            }
        }
        function handleResponse(source, origin, message) {
            if (!isResponseListenerErrored(message.hash)) {
                var options = getResponseListener(message.hash);
                if (!options) throw new Error("No handler found for post message response for message: " + message.name + " from " + origin + " in " + window.location.protocol + "//" + window.location.host + window.location.pathname);
                if (!matchDomain(options.domain, origin)) throw new Error("Response origin " + origin + " does not match domain " + (pattern = options.domain, 
                Array.isArray(pattern) ? "(" + pattern.join(" | ") + ")" : isRegex(pattern) ? "RegExp(" + pattern.toString() + ")" : pattern.toString()));
                var pattern;
                if (source !== options.win) throw new Error("Response source does not match registered window");
                deleteResponseListener(message.hash);
                "error" === message.ack ? options.promise.reject(message.error) : "success" === message.ack && options.promise.resolve({
                    source: source,
                    origin: origin,
                    data: message.data
                });
            }
        }
        function receive_receiveMessage(event, _ref2) {
            var on = _ref2.on, send = _ref2.send;
            var receivedMessages = globalStore("receivedMessages");
            try {
                if (!window || window.closed || !event.source) return;
            } catch (err) {
                return;
            }
            var source = event.source, origin = event.origin;
            var messages = function(message, source, origin, _ref) {
                var on = _ref.on, send = _ref.send;
                var parsedMessage;
                try {
                    parsedMessage = deserializeMessage(source, origin, message, {
                        on: on,
                        send: send
                    });
                } catch (err) {
                    return;
                }
                if (parsedMessage && "object" == typeof parsedMessage && null !== parsedMessage) {
                    var parseMessages = parsedMessage.__post_robot_10_0_44__;
                    if (Array.isArray(parseMessages)) return parseMessages;
                }
            }(event.data, source, origin, {
                on: on,
                send: send
            });
            if (messages) {
                markWindowKnown(source);
                for (var _i2 = 0; _i2 < messages.length; _i2++) {
                    var message = messages[_i2];
                    if (receivedMessages.has(message.id)) return;
                    receivedMessages.set(message.id, !0);
                    if (isWindowClosed(source) && !message.fireAndForget) return;
                    0 === message.origin.indexOf("file:") && (origin = "file://");
                    try {
                        "postrobot_message_request" === message.type ? handleRequest(source, origin, message, {
                            on: on,
                            send: send
                        }) : "postrobot_message_response" === message.type ? handleResponse(source, origin, message) : "postrobot_message_ack" === message.type && handleAck(source, origin, message);
                    } catch (err) {
                        setTimeout((function() {
                            throw err;
                        }), 0);
                    }
                }
            }
        }
        function on_on(name, options, handler) {
            if (!name) throw new Error("Expected name");
            if ("function" == typeof (options = options || {})) {
                handler = options;
                options = {};
            }
            if (!handler) throw new Error("Expected handler");
            (options = options || {}).name = name;
            options.handler = handler || options.handler;
            var win = options.window;
            var domain = options.domain;
            var requestListener = function addRequestListener(_ref4, listener) {
                var name = _ref4.name, win = _ref4.win, domain = _ref4.domain;
                var requestListeners = windowStore("requestListeners");
                if (!name || "string" != typeof name) throw new Error("Name required to add request listener");
                if (Array.isArray(win)) {
                    var listenersCollection = [];
                    for (var _i8 = 0, _win2 = win; _i8 < _win2.length; _i8++) listenersCollection.push(addRequestListener({
                        name: name,
                        domain: domain,
                        win: _win2[_i8]
                    }, listener));
                    return {
                        cancel: function() {
                            for (var _i10 = 0; _i10 < listenersCollection.length; _i10++) listenersCollection[_i10].cancel();
                        }
                    };
                }
                if (Array.isArray(domain)) {
                    var _listenersCollection = [];
                    for (var _i12 = 0, _domain2 = domain; _i12 < _domain2.length; _i12++) _listenersCollection.push(addRequestListener({
                        name: name,
                        win: win,
                        domain: _domain2[_i12]
                    }, listener));
                    return {
                        cancel: function() {
                            for (var _i14 = 0; _i14 < _listenersCollection.length; _i14++) _listenersCollection[_i14].cancel();
                        }
                    };
                }
                var existingListener = getRequestListener({
                    name: name,
                    win: win,
                    domain: domain
                });
                win && "*" !== win || (win = getWildcard());
                domain = domain || "*";
                if (existingListener) throw win && domain ? new Error("Request listener already exists for " + name + " on domain " + domain.toString() + " for " + (win === getWildcard() ? "wildcard" : "specified") + " window") : win ? new Error("Request listener already exists for " + name + " for " + (win === getWildcard() ? "wildcard" : "specified") + " window") : domain ? new Error("Request listener already exists for " + name + " on domain " + domain.toString()) : new Error("Request listener already exists for " + name);
                var nameListeners = requestListeners.getOrSet(win, (function() {
                    return {};
                }));
                var domainListeners = util_getOrSet(nameListeners, name, (function() {
                    return {};
                }));
                var strDomain = domain.toString();
                var regexListeners;
                var regexListener;
                util_isRegex(domain) ? (regexListeners = util_getOrSet(domainListeners, "__domain_regex__", (function() {
                    return [];
                }))).push(regexListener = {
                    regex: domain,
                    listener: listener
                }) : domainListeners[strDomain] = listener;
                return {
                    cancel: function() {
                        delete domainListeners[strDomain];
                        if (regexListener) {
                            regexListeners.splice(regexListeners.indexOf(regexListener, 1));
                            regexListeners.length || delete domainListeners.__domain_regex__;
                        }
                        Object.keys(domainListeners).length || delete nameListeners[name];
                        win && !Object.keys(nameListeners).length && requestListeners.del(win);
                    }
                };
            }({
                name: name,
                win: win,
                domain: domain
            }, {
                handler: options.handler,
                handleError: options.errorHandler || function(err) {
                    throw err;
                },
                window: win,
                domain: domain || "*",
                name: name
            });
            return {
                cancel: function() {
                    requestListener.cancel();
                }
            };
        }
        var send_send = function send(win, name, data, options) {
            var domainMatcher = (options = options || {}).domain || "*";
            var responseTimeout = options.timeout || -1;
            var childTimeout = options.timeout || 5e3;
            var fireAndForget = options.fireAndForget || !1;
            return promise_ZalgoPromise.try((function() {
                !function(name, win, domain) {
                    if (!name) throw new Error("Expected name");
                    if (domain && "string" != typeof domain && !Array.isArray(domain) && !util_isRegex(domain)) throw new TypeError("Can not send " + name + ". Expected domain " + JSON.stringify(domain) + " to be a string, array, or regex");
                    if (isWindowClosed(win)) throw new Error("Can not send " + name + ". Target window is closed");
                }(name, win, domainMatcher);
                if (function(parent, child) {
                    var actualParent = getAncestor(child);
                    if (actualParent) return actualParent === parent;
                    if (child === parent) return !1;
                    if (getTop(child) === child) return !1;
                    for (var _i15 = 0, _getFrames8 = getFrames(parent); _i15 < _getFrames8.length; _i15++) if (_getFrames8[_i15] === child) return !0;
                    return !1;
                }(window, win)) return awaitWindowHello(win, childTimeout);
            })).then((function(_temp) {
                return function(win, targetDomain, actualDomain, _ref) {
                    var send = _ref.send;
                    return promise_ZalgoPromise.try((function() {
                        return "string" == typeof targetDomain ? targetDomain : promise_ZalgoPromise.try((function() {
                            return actualDomain || sayHello(win, {
                                send: send
                            }).then((function(_ref2) {
                                return _ref2.domain;
                            }));
                        })).then((function(normalizedDomain) {
                            if (!matchDomain(targetDomain, targetDomain)) throw new Error("Domain " + stringify(targetDomain) + " does not match " + stringify(targetDomain));
                            return normalizedDomain;
                        }));
                    }));
                }(win, domainMatcher, (void 0 === _temp ? {} : _temp).domain, {
                    send: send
                });
            })).then((function(targetDomain) {
                var domain = targetDomain;
                var logName = "postrobot_method" === name && data && "string" == typeof data.name ? data.name + "()" : name;
                var promise = new promise_ZalgoPromise;
                var hash = name + "_" + uniqueID();
                if (!fireAndForget) {
                    var responseListener = {
                        name: name,
                        win: win,
                        domain: domain,
                        promise: promise
                    };
                    !function(hash, listener) {
                        globalStore("responseListeners").set(hash, listener);
                    }(hash, responseListener);
                    var reqPromises = windowStore("requestPromises").getOrSet(win, (function() {
                        return [];
                    }));
                    reqPromises.push(promise);
                    promise.catch((function() {
                        !function(hash) {
                            globalStore("erroredResponseListeners").set(hash, !0);
                        }(hash);
                        deleteResponseListener(hash);
                    }));
                    var totalAckTimeout = function(win) {
                        return windowStore("knownWindows").get(win, !1);
                    }(win) ? 1e4 : 2e3;
                    var totalResTimeout = responseTimeout;
                    var ackTimeout = totalAckTimeout;
                    var resTimeout = totalResTimeout;
                    var interval = safeInterval((function() {
                        if (isWindowClosed(win)) return promise.reject(new Error("Window closed for " + name + " before " + (responseListener.ack ? "response" : "ack")));
                        if (responseListener.cancelled) return promise.reject(new Error("Response listener was cancelled for " + name));
                        ackTimeout = Math.max(ackTimeout - 500, 0);
                        -1 !== resTimeout && (resTimeout = Math.max(resTimeout - 500, 0));
                        return responseListener.ack || 0 !== ackTimeout ? 0 === resTimeout ? promise.reject(new Error("No response for postMessage " + logName + " in " + getDomain() + " in " + totalResTimeout + "ms")) : void 0 : promise.reject(new Error("No ack for postMessage " + logName + " in " + getDomain() + " in " + totalAckTimeout + "ms"));
                    }), 500);
                    promise.finally((function() {
                        interval.cancel();
                        reqPromises.splice(reqPromises.indexOf(promise, 1));
                    })).catch(src_util_noop);
                }
                return send_sendMessage(win, domain, {
                    id: uniqueID(),
                    origin: getDomain(window),
                    type: "postrobot_message_request",
                    hash: hash,
                    name: name,
                    data: data,
                    fireAndForget: fireAndForget
                }, {
                    on: on_on,
                    send: send
                }).then((function() {
                    return fireAndForget ? promise.resolve() : promise;
                }), (function(err) {
                    throw new Error("Send request message failed for " + logName + " in " + getDomain() + "\n\n" + stringifyError(err));
                }));
            }));
        };
        function setup_toProxyWindow(win) {
            return window_ProxyWindow.toProxyWindow(win, {
                send: send_send
            });
        }
        function cleanUpWindow(win) {
            for (var _i2 = 0, _requestPromises$get2 = windowStore("requestPromises").get(win, []); _i2 < _requestPromises$get2.length; _i2++) _requestPromises$get2[_i2].reject(new Error("Window " + (isWindowClosed(win) ? "closed" : "cleaned up") + " before response")).catch(src_util_noop);
        }
        var src_bridge;
        src_bridge = {
            setupBridge: setupBridge,
            openBridge: function(url, domain) {
                var bridges = globalStore("bridges");
                var bridgeFrames = globalStore("bridgeFrames");
                domain = domain || getDomainFromUrl(url);
                return bridges.getOrSet(domain, (function() {
                    return promise_ZalgoPromise.try((function() {
                        if (getDomain() === domain) throw new Error("Can not open bridge on the same domain as current domain: " + domain);
                        var name = getBridgeName(domain);
                        if (getFrameByName(window, name)) throw new Error("Frame with name " + name + " already exists on page");
                        var iframe = function(name, url) {
                            var iframe = document.createElement("iframe");
                            iframe.setAttribute("name", name);
                            iframe.setAttribute("id", name);
                            iframe.setAttribute("style", "display: none; margin: 0; padding: 0; border: 0px none; overflow: hidden;");
                            iframe.setAttribute("frameborder", "0");
                            iframe.setAttribute("border", "0");
                            iframe.setAttribute("scrolling", "no");
                            iframe.setAttribute("allowTransparency", "true");
                            iframe.setAttribute("tabindex", "-1");
                            iframe.setAttribute("hidden", "true");
                            iframe.setAttribute("title", "");
                            iframe.setAttribute("role", "presentation");
                            iframe.src = url;
                            return iframe;
                        }(name, url);
                        bridgeFrames.set(domain, iframe);
                        return documentBodyReady.then((function(body) {
                            body.appendChild(iframe);
                            var bridge = iframe.contentWindow;
                            return new promise_ZalgoPromise((function(resolve, reject) {
                                iframe.addEventListener("load", resolve);
                                iframe.addEventListener("error", reject);
                            })).then((function() {
                                return awaitWindowHello(bridge, 5e3, "Bridge " + url);
                            })).then((function() {
                                return bridge;
                            }));
                        }));
                    }));
                }));
            },
            linkWindow: linkWindow,
            linkUrl: function(win, url) {
                linkWindow({
                    win: win,
                    domain: getDomainFromUrl(url)
                });
            },
            isBridge: isBridge,
            needsBridge: needsBridge,
            needsBridgeForBrowser: needsBridgeForBrowser,
            hasBridge: function(url, domain) {
                return globalStore("bridges").has(domain || getDomainFromUrl(url));
            },
            needsBridgeForWin: needsBridgeForWin,
            needsBridgeForDomain: needsBridgeForDomain,
            destroyBridges: function() {
                var bridges = globalStore("bridges");
                var bridgeFrames = globalStore("bridgeFrames");
                for (var _i4 = 0, _bridgeFrames$keys2 = bridgeFrames.keys(); _i4 < _bridgeFrames$keys2.length; _i4++) {
                    var frame = bridgeFrames.get(_bridgeFrames$keys2[_i4]);
                    frame && frame.parentNode && frame.parentNode.removeChild(frame);
                }
                bridgeFrames.reset();
                bridges.reset();
            }
        };
        function lib_global_getGlobal(win) {
            if (!isSameDomain(win)) throw new Error("Can not get global for window on different domain");
            win.__zoid_9_0_86__ || (win.__zoid_9_0_86__ = {});
            return win.__zoid_9_0_86__;
        }
        function tryGlobal(win, handler) {
            try {
                return handler(lib_global_getGlobal(win));
            } catch (err) {}
        }
        function getProxyObject(obj) {
            return {
                get: function() {
                    var _this = this;
                    return promise_ZalgoPromise.try((function() {
                        if (_this.source && _this.source !== window) throw new Error("Can not call get on proxy object from a remote window");
                        return obj;
                    }));
                }
            };
        }
        function basicSerialize(data) {
            return base64encode(JSON.stringify(data));
        }
        function getUIDRefStore(win) {
            var global = lib_global_getGlobal(win);
            global.references = global.references || {};
            return global.references;
        }
        function crossDomainSerialize(_ref) {
            var data = _ref.data, metaData = _ref.metaData, sender = _ref.sender, receiver = _ref.receiver, _ref$passByReference = _ref.passByReference, passByReference = void 0 !== _ref$passByReference && _ref$passByReference, _ref$basic = _ref.basic, basic = void 0 !== _ref$basic && _ref$basic;
            var proxyWin = setup_toProxyWindow(receiver.win);
            var serializedMessage = basic ? JSON.stringify(data) : serializeMessage(proxyWin, receiver.domain, data, {
                on: on_on,
                send: send_send
            });
            var reference = passByReference ? function(val) {
                var uid = uniqueID();
                getUIDRefStore(window)[uid] = val;
                return {
                    type: "uid",
                    uid: uid
                };
            }(serializedMessage) : {
                type: "raw",
                val: serializedMessage
            };
            return {
                serializedData: basicSerialize({
                    sender: {
                        domain: sender.domain
                    },
                    metaData: metaData,
                    reference: reference
                }),
                cleanReference: function() {
                    win = window, "uid" === (ref = reference).type && delete getUIDRefStore(win)[ref.uid];
                    var win, ref;
                }
            };
        }
        function crossDomainDeserialize(_ref2) {
            var sender = _ref2.sender, _ref2$basic = _ref2.basic, basic = void 0 !== _ref2$basic && _ref2$basic;
            var message = function(serializedData) {
                return JSON.parse(function(str) {
                    if ("function" == typeof atob) return decodeURIComponent([].map.call(atob(str), (function(c) {
                        return "%" + ("00" + c.charCodeAt(0).toString(16)).slice(-2);
                    })).join(""));
                    if ("undefined" != typeof Buffer) return Buffer.from(str, "base64").toString("utf8");
                    throw new Error("Can not find window.atob or Buffer");
                }(serializedData));
            }(_ref2.data);
            var reference = message.reference, metaData = message.metaData;
            var win;
            win = "function" == typeof sender.win ? sender.win({
                metaData: metaData
            }) : sender.win;
            var domain;
            domain = "function" == typeof sender.domain ? sender.domain({
                metaData: metaData
            }) : "string" == typeof sender.domain ? sender.domain : message.sender.domain;
            var serializedData = function(win, ref) {
                if ("raw" === ref.type) return ref.val;
                if ("uid" === ref.type) return getUIDRefStore(win)[ref.uid];
                throw new Error("Unsupported ref type: " + ref.type);
            }(win, reference);
            return {
                data: basic ? JSON.parse(serializedData) : function(source, origin, message) {
                    return deserializeMessage(source, origin, message, {
                        on: on_on,
                        send: send_send
                    });
                }(win, domain, serializedData),
                metaData: metaData,
                sender: {
                    win: win,
                    domain: domain
                },
                reference: reference
            };
        }
        var PROP_TYPE = {
            STRING: "string",
            OBJECT: "object",
            FUNCTION: "function",
            BOOLEAN: "boolean",
            NUMBER: "number",
            ARRAY: "array"
        };
        var PROP_SERIALIZATION = {
            JSON: "json",
            DOTIFY: "dotify",
            BASE64: "base64"
        };
        var CONTEXT = WINDOW_TYPE;
        var EVENT = {
            RENDER: "zoid-render",
            RENDERED: "zoid-rendered",
            DISPLAY: "zoid-display",
            ERROR: "zoid-error",
            CLOSE: "zoid-close",
            DESTROY: "zoid-destroy",
            PROPS: "zoid-props",
            RESIZE: "zoid-resize",
            FOCUS: "zoid-focus"
        };
        function buildChildWindowName(_ref) {
            return "__zoid__" + _ref.name + "__" + _ref.serializedPayload + "__";
        }
        function parseWindowName(windowName) {
            if (!windowName) throw new Error("No window name");
            var _windowName$split = windowName.split("__"), zoidcomp = _windowName$split[1], name = _windowName$split[2], serializedInitialPayload = _windowName$split[3];
            if ("zoid" !== zoidcomp) throw new Error("Window not rendered by zoid - got " + zoidcomp);
            if (!name) throw new Error("Expected component name");
            if (!serializedInitialPayload) throw new Error("Expected serialized payload ref");
            return {
                name: name,
                serializedInitialPayload: serializedInitialPayload
            };
        }
        var parseInitialParentPayload = memoize((function(windowName) {
            var _crossDomainDeseriali = crossDomainDeserialize({
                data: parseWindowName(windowName).serializedInitialPayload,
                sender: {
                    win: function(_ref2) {
                        return function(windowRef) {
                            if ("opener" === windowRef.type) return assertExists("opener", getOpener(window));
                            if ("parent" === windowRef.type && "number" == typeof windowRef.distance) return assertExists("parent", function(win, n) {
                                void 0 === n && (n = 1);
                                return function(win, n) {
                                    void 0 === n && (n = 1);
                                    var parent = win;
                                    for (var i = 0; i < n; i++) {
                                        if (!parent) return;
                                        parent = utils_getParent(parent);
                                    }
                                    return parent;
                                }(win, getDistanceFromTop(win) - n);
                            }(window, windowRef.distance));
                            if ("global" === windowRef.type && windowRef.uid && "string" == typeof windowRef.uid) {
                                var _ret = function() {
                                    var uid = windowRef.uid;
                                    var ancestor = getAncestor(window);
                                    if (!ancestor) throw new Error("Can not find ancestor window");
                                    for (var _i2 = 0, _getAllFramesInWindow2 = getAllFramesInWindow(ancestor); _i2 < _getAllFramesInWindow2.length; _i2++) {
                                        var frame = _getAllFramesInWindow2[_i2];
                                        if (isSameDomain(frame)) {
                                            var win = tryGlobal(frame, (function(global) {
                                                return global.windows && global.windows[uid];
                                            }));
                                            if (win) return {
                                                v: win
                                            };
                                        }
                                    }
                                }();
                                if ("object" == typeof _ret) return _ret.v;
                            } else if ("name" === windowRef.type) {
                                var name = windowRef.name;
                                return assertExists("namedWindow", function(win, name) {
                                    return getFrameByName(win, name) || function findChildFrameByName(win, name) {
                                        var frame = getFrameByName(win, name);
                                        if (frame) return frame;
                                        for (var _i11 = 0, _getFrames4 = getFrames(win); _i11 < _getFrames4.length; _i11++) {
                                            var namedFrame = findChildFrameByName(_getFrames4[_i11], name);
                                            if (namedFrame) return namedFrame;
                                        }
                                    }(getTop(win) || win, name);
                                }(assertExists("ancestor", getAncestor(window)), name));
                            }
                            throw new Error("Unable to find " + windowRef.type + " parent component window");
                        }(_ref2.metaData.windowRef);
                    }
                }
            });
            return {
                parent: _crossDomainDeseriali.sender,
                payload: _crossDomainDeseriali.data,
                reference: _crossDomainDeseriali.reference
            };
        }));
        function getInitialParentPayload() {
            return parseInitialParentPayload(window.name);
        }
        function window_getWindowRef(targetWindow, currentWindow) {
            void 0 === currentWindow && (currentWindow = window);
            if (targetWindow === utils_getParent(currentWindow)) return {
                type: "parent",
                distance: getDistanceFromTop(targetWindow)
            };
            if (targetWindow === getOpener(currentWindow)) return {
                type: "opener"
            };
            if (isSameDomain(targetWindow) && !(win = targetWindow, win === getTop(win))) {
                var windowName = assertSameDomain(targetWindow).name;
                if (windowName) return {
                    type: "name",
                    name: windowName
                };
            }
            var win;
        }
        function normalizeChildProp(propsDef, props, key, value, helpers) {
            if (!propsDef.hasOwnProperty(key)) return value;
            var prop = propsDef[key];
            return "function" == typeof prop.childDecorate ? prop.childDecorate({
                value: value,
                uid: helpers.uid,
                tag: helpers.tag,
                close: helpers.close,
                focus: helpers.focus,
                onError: helpers.onError,
                onProps: helpers.onProps,
                resize: helpers.resize,
                getParent: helpers.getParent,
                getParentDomain: helpers.getParentDomain,
                show: helpers.show,
                hide: helpers.hide,
                export: helpers.export,
                getSiblings: helpers.getSiblings
            }) : value;
        }
        function child_focus() {
            return promise_ZalgoPromise.try((function() {
                window.focus();
            }));
        }
        function child_destroy() {
            return promise_ZalgoPromise.try((function() {
                window.close();
            }));
        }
        var props_defaultNoop = function() {
            return src_util_noop;
        };
        var props_decorateOnce = function(_ref) {
            return once(_ref.value);
        };
        function eachProp(props, propsDef, handler) {
            for (var _i2 = 0, _Object$keys2 = Object.keys(_extends({}, props, propsDef)); _i2 < _Object$keys2.length; _i2++) {
                var key = _Object$keys2[_i2];
                handler(key, propsDef[key], props[key]);
            }
        }
        function serializeProps(propsDef, props, method) {
            var params = {};
            return promise_ZalgoPromise.all(function(props, propsDef, handler) {
                var results = [];
                eachProp(props, propsDef, (function(key, propDef, value) {
                    var result = function(key, propDef, value) {
                        return promise_ZalgoPromise.resolve().then((function() {
                            var _METHOD$GET$METHOD$PO, _METHOD$GET$METHOD$PO2;
                            if (null != value && propDef) {
                                var getParam = (_METHOD$GET$METHOD$PO = {}, _METHOD$GET$METHOD$PO.get = propDef.queryParam, 
                                _METHOD$GET$METHOD$PO.post = propDef.bodyParam, _METHOD$GET$METHOD$PO)[method];
                                var getValue = (_METHOD$GET$METHOD$PO2 = {}, _METHOD$GET$METHOD$PO2.get = propDef.queryValue, 
                                _METHOD$GET$METHOD$PO2.post = propDef.bodyValue, _METHOD$GET$METHOD$PO2)[method];
                                if (getParam) return promise_ZalgoPromise.hash({
                                    finalParam: promise_ZalgoPromise.try((function() {
                                        return "function" == typeof getParam ? getParam({
                                            value: value
                                        }) : "string" == typeof getParam ? getParam : key;
                                    })),
                                    finalValue: promise_ZalgoPromise.try((function() {
                                        return "function" == typeof getValue && isDefined(value) ? getValue({
                                            value: value
                                        }) : value;
                                    }))
                                }).then((function(_ref) {
                                    var finalParam = _ref.finalParam, finalValue = _ref.finalValue;
                                    var result;
                                    if ("boolean" == typeof finalValue) result = finalValue.toString(); else if ("string" == typeof finalValue) result = finalValue.toString(); else if ("object" == typeof finalValue && null !== finalValue) {
                                        if (propDef.serialization === PROP_SERIALIZATION.JSON) result = JSON.stringify(finalValue); else if (propDef.serialization === PROP_SERIALIZATION.BASE64) result = base64encode(JSON.stringify(finalValue)); else if (propDef.serialization === PROP_SERIALIZATION.DOTIFY || !propDef.serialization) {
                                            result = function dotify(obj, prefix, newobj) {
                                                void 0 === prefix && (prefix = "");
                                                void 0 === newobj && (newobj = {});
                                                prefix = prefix ? prefix + "." : prefix;
                                                for (var key in obj) obj.hasOwnProperty(key) && null != obj[key] && "function" != typeof obj[key] && (obj[key] && Array.isArray(obj[key]) && obj[key].length && obj[key].every((function(val) {
                                                    return "object" != typeof val;
                                                })) ? newobj["" + prefix + key + "[]"] = obj[key].join(",") : obj[key] && "object" == typeof obj[key] ? newobj = dotify(obj[key], "" + prefix + key, newobj) : newobj["" + prefix + key] = obj[key].toString());
                                                return newobj;
                                            }(finalValue, key);
                                            for (var _i2 = 0, _Object$keys2 = Object.keys(result); _i2 < _Object$keys2.length; _i2++) {
                                                var dotkey = _Object$keys2[_i2];
                                                params[dotkey] = result[dotkey];
                                            }
                                            return;
                                        }
                                    } else "number" == typeof finalValue && (result = finalValue.toString());
                                    params[finalParam] = result;
                                }));
                            }
                        }));
                    }(key, propDef, value);
                    results.push(result);
                }));
                return results;
            }(props, propsDef)).then((function() {
                return params;
            }));
        }
        function parentComponent(_ref) {
            var uid = _ref.uid, options = _ref.options, _ref$overrides = _ref.overrides, overrides = void 0 === _ref$overrides ? {} : _ref$overrides, _ref$parentWin = _ref.parentWin, parentWin = void 0 === _ref$parentWin ? window : _ref$parentWin;
            var propsDef = options.propsDef, containerTemplate = options.containerTemplate, prerenderTemplate = options.prerenderTemplate, tag = options.tag, name = options.name, attributes = options.attributes, dimensions = options.dimensions, autoResize = options.autoResize, url = options.url, domainMatch = options.domain, xports = options.exports;
            var initPromise = new promise_ZalgoPromise;
            var handledErrors = [];
            var clean = cleanup();
            var state = {};
            var inputProps = {};
            var internalState = {
                visible: !0
            };
            var event = overrides.event ? overrides.event : (triggered = {}, handlers = {}, 
            emitter = {
                on: function(eventName, handler) {
                    var handlerList = handlers[eventName] = handlers[eventName] || [];
                    handlerList.push(handler);
                    var cancelled = !1;
                    return {
                        cancel: function() {
                            if (!cancelled) {
                                cancelled = !0;
                                handlerList.splice(handlerList.indexOf(handler), 1);
                            }
                        }
                    };
                },
                once: function(eventName, handler) {
                    var listener = emitter.on(eventName, (function() {
                        listener.cancel();
                        handler();
                    }));
                    return listener;
                },
                trigger: function(eventName) {
                    for (var _len3 = arguments.length, args = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) args[_key3 - 1] = arguments[_key3];
                    var handlerList = handlers[eventName];
                    var promises = [];
                    if (handlerList) {
                        var _loop = function(_i2) {
                            var handler = handlerList[_i2];
                            promises.push(promise_ZalgoPromise.try((function() {
                                return handler.apply(void 0, args);
                            })));
                        };
                        for (var _i2 = 0; _i2 < handlerList.length; _i2++) _loop(_i2);
                    }
                    return promise_ZalgoPromise.all(promises).then(src_util_noop);
                },
                triggerOnce: function(eventName) {
                    if (triggered[eventName]) return promise_ZalgoPromise.resolve();
                    triggered[eventName] = !0;
                    for (var _len4 = arguments.length, args = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) args[_key4 - 1] = arguments[_key4];
                    return emitter.trigger.apply(emitter, [ eventName ].concat(args));
                },
                reset: function() {
                    handlers = {};
                }
            });
            var triggered, handlers, emitter;
            var props = overrides.props ? overrides.props : {};
            var currentProxyWin;
            var currentProxyContainer;
            var childComponent;
            var currentChildDomain;
            var currentContainer;
            var onErrorOverride = overrides.onError;
            var getProxyContainerOverride = overrides.getProxyContainer;
            var showOverride = overrides.show;
            var hideOverride = overrides.hide;
            var closeOverride = overrides.close;
            var renderContainerOverride = overrides.renderContainer;
            var getProxyWindowOverride = overrides.getProxyWindow;
            var setProxyWinOverride = overrides.setProxyWin;
            var openFrameOverride = overrides.openFrame;
            var openPrerenderFrameOverride = overrides.openPrerenderFrame;
            var prerenderOverride = overrides.prerender;
            var openOverride = overrides.open;
            var openPrerenderOverride = overrides.openPrerender;
            var watchForUnloadOverride = overrides.watchForUnload;
            var getInternalStateOverride = overrides.getInternalState;
            var setInternalStateOverride = overrides.setInternalState;
            var getDimensions = function() {
                return "function" == typeof dimensions ? dimensions({
                    props: props
                }) : dimensions;
            };
            var resolveInitPromise = function() {
                return promise_ZalgoPromise.try((function() {
                    return overrides.resolveInitPromise ? overrides.resolveInitPromise() : initPromise.resolve();
                }));
            };
            var rejectInitPromise = function(err) {
                return promise_ZalgoPromise.try((function() {
                    return overrides.rejectInitPromise ? overrides.rejectInitPromise(err) : initPromise.reject(err);
                }));
            };
            var getPropsForChild = function(initialChildDomain) {
                var result = {};
                for (var _i2 = 0, _Object$keys2 = Object.keys(props); _i2 < _Object$keys2.length; _i2++) {
                    var key = _Object$keys2[_i2];
                    var prop = propsDef[key];
                    prop && !1 === prop.sendToChild || prop && prop.sameDomain && !matchDomain(initialChildDomain, getDomain(window)) || (result[key] = props[key]);
                }
                return promise_ZalgoPromise.hash(result);
            };
            var getInternalState = function() {
                return promise_ZalgoPromise.try((function() {
                    return getInternalStateOverride ? getInternalStateOverride() : internalState;
                }));
            };
            var setInternalState = function(newInternalState) {
                return promise_ZalgoPromise.try((function() {
                    return setInternalStateOverride ? setInternalStateOverride(newInternalState) : internalState = _extends({}, internalState, newInternalState);
                }));
            };
            var getProxyWindow = function() {
                return getProxyWindowOverride ? getProxyWindowOverride() : promise_ZalgoPromise.try((function() {
                    var windowProp = props.window;
                    if (windowProp) {
                        var _proxyWin = setup_toProxyWindow(windowProp);
                        clean.register((function() {
                            return windowProp.close();
                        }));
                        return _proxyWin;
                    }
                    return new window_ProxyWindow({
                        send: send_send
                    });
                }));
            };
            var setProxyWin = function(proxyWin) {
                return setProxyWinOverride ? setProxyWinOverride(proxyWin) : promise_ZalgoPromise.try((function() {
                    currentProxyWin = proxyWin;
                }));
            };
            var show = function() {
                return showOverride ? showOverride() : promise_ZalgoPromise.hash({
                    setState: setInternalState({
                        visible: !0
                    }),
                    showElement: currentProxyContainer ? currentProxyContainer.get().then(showElement) : null
                }).then(src_util_noop);
            };
            var hide = function() {
                return hideOverride ? hideOverride() : promise_ZalgoPromise.hash({
                    setState: setInternalState({
                        visible: !1
                    }),
                    showElement: currentProxyContainer ? currentProxyContainer.get().then(hideElement) : null
                }).then(src_util_noop);
            };
            var getUrl = function() {
                return "function" == typeof url ? url({
                    props: props
                }) : url;
            };
            var getAttributes = function() {
                return "function" == typeof attributes ? attributes({
                    props: props
                }) : attributes;
            };
            var getInitialChildDomain = function() {
                return getDomainFromUrl(getUrl());
            };
            var openFrame = function(context, _ref2) {
                var windowName = _ref2.windowName;
                return openFrameOverride ? openFrameOverride(context, {
                    windowName: windowName
                }) : promise_ZalgoPromise.try((function() {
                    if (context === CONTEXT.IFRAME) return getProxyObject(dom_iframe({
                        attributes: _extends({
                            name: windowName,
                            title: name
                        }, getAttributes().iframe)
                    }));
                }));
            };
            var openPrerenderFrame = function(context) {
                return openPrerenderFrameOverride ? openPrerenderFrameOverride(context) : promise_ZalgoPromise.try((function() {
                    if (context === CONTEXT.IFRAME) return getProxyObject(dom_iframe({
                        attributes: _extends({
                            name: "__zoid_prerender_frame__" + name + "_" + uniqueID() + "__",
                            title: "prerender__" + name
                        }, getAttributes().iframe)
                    }));
                }));
            };
            var openPrerender = function(context, proxyWin, proxyPrerenderFrame) {
                return openPrerenderOverride ? openPrerenderOverride(context, proxyWin, proxyPrerenderFrame) : promise_ZalgoPromise.try((function() {
                    if (context === CONTEXT.IFRAME) {
                        if (!proxyPrerenderFrame) throw new Error("Expected proxy frame to be passed");
                        return proxyPrerenderFrame.get().then((function(prerenderFrame) {
                            clean.register((function() {
                                return destroyElement(prerenderFrame);
                            }));
                            return awaitFrameWindow(prerenderFrame).then((function(prerenderFrameWindow) {
                                return assertSameDomain(prerenderFrameWindow);
                            })).then((function(win) {
                                return setup_toProxyWindow(win);
                            }));
                        }));
                    }
                    if (context === CONTEXT.POPUP) return proxyWin;
                    throw new Error("No render context available for " + context);
                }));
            };
            var focus = function() {
                return promise_ZalgoPromise.try((function() {
                    if (currentProxyWin) return promise_ZalgoPromise.all([ event.trigger(EVENT.FOCUS), currentProxyWin.focus() ]).then(src_util_noop);
                }));
            };
            var getCurrentWindowReferenceUID = function() {
                var global = lib_global_getGlobal(window);
                global.windows = global.windows || {};
                global.windows[uid] = window;
                clean.register((function() {
                    delete global.windows[uid];
                }));
                return uid;
            };
            var getWindowRef = function(target, initialChildDomain, context, proxyWin) {
                if (initialChildDomain === getDomain(window)) return {
                    type: "global",
                    uid: getCurrentWindowReferenceUID()
                };
                if (target !== window) throw new Error("Can not construct cross-domain window reference for different target window");
                if (props.window) {
                    var actualComponentWindow = proxyWin.getWindow();
                    if (!actualComponentWindow) throw new Error("Can not construct cross-domain window reference for lazy window prop");
                    if (getAncestor(actualComponentWindow) !== window) throw new Error("Can not construct cross-domain window reference for window prop with different ancestor");
                }
                if (context === CONTEXT.POPUP) return {
                    type: "opener"
                };
                if (context === CONTEXT.IFRAME) return {
                    type: "parent",
                    distance: getDistanceFromTop(window)
                };
                throw new Error("Can not construct window reference for child");
            };
            var initChild = function(childDomain, childExports) {
                return promise_ZalgoPromise.try((function() {
                    currentChildDomain = childDomain;
                    childComponent = childExports;
                    resolveInitPromise();
                    clean.register((function() {
                        return childExports.close.fireAndForget().catch(src_util_noop);
                    }));
                }));
            };
            var resize = function(_ref3) {
                var width = _ref3.width, height = _ref3.height;
                return promise_ZalgoPromise.try((function() {
                    event.trigger(EVENT.RESIZE, {
                        width: width,
                        height: height
                    });
                }));
            };
            var destroy = function(err) {
                return promise_ZalgoPromise.try((function() {
                    return event.trigger(EVENT.DESTROY);
                })).catch(src_util_noop).then((function() {
                    return clean.all(err);
                })).then((function() {
                    initPromise.asyncReject(err || new Error("Component destroyed"));
                }));
            };
            var close = memoize((function(err) {
                return promise_ZalgoPromise.try((function() {
                    if (closeOverride) {
                        if (isWindowClosed(closeOverride.__source__)) return;
                        return closeOverride();
                    }
                    return promise_ZalgoPromise.try((function() {
                        return event.trigger(EVENT.CLOSE);
                    })).then((function() {
                        return destroy(err || new Error("Component closed"));
                    }));
                }));
            }));
            var open = function(context, _ref4) {
                var proxyWin = _ref4.proxyWin, proxyFrame = _ref4.proxyFrame, windowName = _ref4.windowName;
                return openOverride ? openOverride(context, {
                    proxyWin: proxyWin,
                    proxyFrame: proxyFrame,
                    windowName: windowName
                }) : promise_ZalgoPromise.try((function() {
                    if (context === CONTEXT.IFRAME) {
                        if (!proxyFrame) throw new Error("Expected proxy frame to be passed");
                        return proxyFrame.get().then((function(frame) {
                            return awaitFrameWindow(frame).then((function(win) {
                                clean.register((function() {
                                    return destroyElement(frame);
                                }));
                                clean.register((function() {
                                    return cleanUpWindow(win);
                                }));
                                return win;
                            }));
                        }));
                    }
                    if (context === CONTEXT.POPUP) {
                        var _getDimensions = getDimensions(), _getDimensions$width = _getDimensions.width, width = void 0 === _getDimensions$width ? "300px" : _getDimensions$width, _getDimensions$height = _getDimensions.height, height = void 0 === _getDimensions$height ? "150px" : _getDimensions$height;
                        width = normalizeDimension(width, window.outerWidth);
                        height = normalizeDimension(height, window.outerWidth);
                        var win = function(url, options) {
                            var _options$closeOnUnloa = (options = options || {}).closeOnUnload, closeOnUnload = void 0 === _options$closeOnUnloa ? 1 : _options$closeOnUnloa, _options$name = options.name, name = void 0 === _options$name ? "" : _options$name, width = options.width, height = options.height;
                            var top = 0;
                            var left = 0;
                            width && (window.outerWidth ? left = Math.round((window.outerWidth - width) / 2) + window.screenX : window.screen.width && (left = Math.round((window.screen.width - width) / 2)));
                            height && (window.outerHeight ? top = Math.round((window.outerHeight - height) / 2) + window.screenY : window.screen.height && (top = Math.round((window.screen.height - height) / 2)));
                            delete options.closeOnUnload;
                            delete options.name;
                            width && height && (options = _extends({
                                top: top,
                                left: left,
                                width: width,
                                height: height,
                                status: 1,
                                toolbar: 0,
                                menubar: 0,
                                resizable: 1,
                                scrollbars: 1
                            }, options));
                            var params = Object.keys(options).map((function(key) {
                                if (null != options[key]) return key + "=" + stringify(options[key]);
                            })).filter(Boolean).join(",");
                            var win;
                            try {
                                win = window.open("", name, params);
                            } catch (err) {
                                throw new dom_PopupOpenError("Can not open popup window - " + (err.stack || err.message));
                            }
                            if (isWindowClosed(win)) {
                                var err;
                                throw new dom_PopupOpenError("Can not open popup window - blocked");
                            }
                            closeOnUnload && window.addEventListener("unload", (function() {
                                return win.close();
                            }));
                            return win;
                        }(0, _extends({
                            name: windowName,
                            width: width,
                            height: height
                        }, getAttributes().popup));
                        clean.register((function() {
                            return closeWindow(win);
                        }));
                        clean.register((function() {
                            return cleanUpWindow(win);
                        }));
                        return win;
                    }
                    throw new Error("No render context available for " + context);
                })).then((function(win) {
                    proxyWin.setWindow(win, {
                        send: send_send
                    });
                    return proxyWin.setName(windowName).then((function() {
                        return proxyWin;
                    }));
                }));
            };
            var watchForUnload = function() {
                return promise_ZalgoPromise.try((function() {
                    var unloadWindowListener = addEventListener(window, "unload", once((function() {
                        destroy(new Error("Window navigated away"));
                    })));
                    var closeParentWindowListener = onCloseWindow(parentWin, destroy, 3e3);
                    clean.register(closeParentWindowListener.cancel);
                    clean.register(unloadWindowListener.cancel);
                    if (watchForUnloadOverride) return watchForUnloadOverride();
                }));
            };
            var checkWindowClose = function(proxyWin) {
                var closed = !1;
                return proxyWin.isClosed().then((function(isClosed) {
                    if (isClosed) {
                        closed = !0;
                        return close(new Error("Detected component window close"));
                    }
                    return promise_ZalgoPromise.delay(200).then((function() {
                        return proxyWin.isClosed();
                    })).then((function(secondIsClosed) {
                        if (secondIsClosed) {
                            closed = !0;
                            return close(new Error("Detected component window close"));
                        }
                    }));
                })).then((function() {
                    return closed;
                }));
            };
            var onError = function(err) {
                return onErrorOverride ? onErrorOverride(err) : promise_ZalgoPromise.try((function() {
                    if (-1 === handledErrors.indexOf(err)) {
                        handledErrors.push(err);
                        initPromise.asyncReject(err);
                        return event.trigger(EVENT.ERROR, err);
                    }
                }));
            };
            var exportsPromise = new promise_ZalgoPromise;
            var xport = function(actualExports) {
                return promise_ZalgoPromise.try((function() {
                    exportsPromise.resolve(actualExports);
                }));
            };
            initChild.onError = onError;
            var renderTemplate = function(renderer, _ref8) {
                return renderer({
                    uid: uid,
                    container: _ref8.container,
                    context: _ref8.context,
                    doc: _ref8.doc,
                    frame: _ref8.frame,
                    prerenderFrame: _ref8.prerenderFrame,
                    focus: focus,
                    close: close,
                    state: state,
                    props: props,
                    tag: tag,
                    dimensions: getDimensions(),
                    event: event
                });
            };
            var prerender = function(proxyPrerenderWin, _ref9) {
                var context = _ref9.context;
                return prerenderOverride ? prerenderOverride(proxyPrerenderWin, {
                    context: context
                }) : promise_ZalgoPromise.try((function() {
                    if (prerenderTemplate) {
                        var prerenderWindow = proxyPrerenderWin.getWindow();
                        if (prerenderWindow && isSameDomain(prerenderWindow) && function(win) {
                            try {
                                if (!win.location.href) return !0;
                                if ("about:blank" === win.location.href) return !0;
                            } catch (err) {}
                            return !1;
                        }(prerenderWindow)) {
                            var doc = (prerenderWindow = assertSameDomain(prerenderWindow)).document;
                            var el = renderTemplate(prerenderTemplate, {
                                context: context,
                                doc: doc
                            });
                            if (el) {
                                if (el.ownerDocument !== doc) throw new Error("Expected prerender template to have been created with document from child window");
                                !function(win, el) {
                                    var tag = el.tagName.toLowerCase();
                                    if ("html" !== tag) throw new Error("Expected element to be html, got " + tag);
                                    var documentElement = win.document.documentElement;
                                    for (var _i6 = 0, _arrayFrom2 = arrayFrom(documentElement.children); _i6 < _arrayFrom2.length; _i6++) documentElement.removeChild(_arrayFrom2[_i6]);
                                    for (var _i8 = 0, _arrayFrom4 = arrayFrom(el.children); _i8 < _arrayFrom4.length; _i8++) documentElement.appendChild(_arrayFrom4[_i8]);
                                }(prerenderWindow, el);
                                var _autoResize$width = autoResize.width, width = void 0 !== _autoResize$width && _autoResize$width, _autoResize$height = autoResize.height, height = void 0 !== _autoResize$height && _autoResize$height, _autoResize$element = autoResize.element, element = void 0 === _autoResize$element ? "body" : _autoResize$element;
                                if ((element = getElementSafe(element, doc)) && (width || height)) {
                                    var prerenderResizeListener = onResize(element, (function(_ref10) {
                                        resize({
                                            width: width ? _ref10.width : void 0,
                                            height: height ? _ref10.height : void 0
                                        });
                                    }), {
                                        width: width,
                                        height: height,
                                        win: prerenderWindow
                                    });
                                    event.on(EVENT.RENDERED, prerenderResizeListener.cancel);
                                }
                            }
                        }
                    }
                }));
            };
            var renderContainer = function(proxyContainer, _ref11) {
                var proxyFrame = _ref11.proxyFrame, proxyPrerenderFrame = _ref11.proxyPrerenderFrame, context = _ref11.context, rerender = _ref11.rerender;
                return renderContainerOverride ? renderContainerOverride(proxyContainer, {
                    proxyFrame: proxyFrame,
                    proxyPrerenderFrame: proxyPrerenderFrame,
                    context: context,
                    rerender: rerender
                }) : promise_ZalgoPromise.hash({
                    container: proxyContainer.get(),
                    frame: proxyFrame ? proxyFrame.get() : null,
                    prerenderFrame: proxyPrerenderFrame ? proxyPrerenderFrame.get() : null,
                    internalState: getInternalState()
                }).then((function(_ref12) {
                    var container = _ref12.container, visible = _ref12.internalState.visible;
                    var innerContainer = renderTemplate(containerTemplate, {
                        context: context,
                        container: container,
                        frame: _ref12.frame,
                        prerenderFrame: _ref12.prerenderFrame,
                        doc: document
                    });
                    if (innerContainer) {
                        visible || hideElement(innerContainer);
                        appendChild(container, innerContainer);
                        var containerWatcher = function(element, handler) {
                            handler = once(handler);
                            var cancelled = !1;
                            var mutationObservers = [];
                            var interval;
                            var sacrificialFrame;
                            var sacrificialFrameWin;
                            var cancel = function() {
                                cancelled = !0;
                                for (var _i18 = 0; _i18 < mutationObservers.length; _i18++) mutationObservers[_i18].disconnect();
                                interval && interval.cancel();
                                sacrificialFrameWin && sacrificialFrameWin.removeEventListener("unload", elementClosed);
                                sacrificialFrame && destroyElement(sacrificialFrame);
                            };
                            var elementClosed = function() {
                                if (!cancelled) {
                                    handler();
                                    cancel();
                                }
                            };
                            if (isElementClosed(element)) {
                                elementClosed();
                                return {
                                    cancel: cancel
                                };
                            }
                            if (window.MutationObserver) {
                                var mutationElement = element.parentElement;
                                for (;mutationElement; ) {
                                    var mutationObserver = new window.MutationObserver((function() {
                                        isElementClosed(element) && elementClosed();
                                    }));
                                    mutationObserver.observe(mutationElement, {
                                        childList: !0
                                    });
                                    mutationObservers.push(mutationObserver);
                                    mutationElement = mutationElement.parentElement;
                                }
                            }
                            (sacrificialFrame = document.createElement("iframe")).setAttribute("name", "__detect_close_" + uniqueID() + "__");
                            sacrificialFrame.style.display = "none";
                            awaitFrameWindow(sacrificialFrame).then((function(frameWin) {
                                (sacrificialFrameWin = assertSameDomain(frameWin)).addEventListener("unload", elementClosed);
                            }));
                            element.appendChild(sacrificialFrame);
                            interval = safeInterval((function() {
                                isElementClosed(element) && elementClosed();
                            }), 1e3);
                            return {
                                cancel: cancel
                            };
                        }(innerContainer, (function() {
                            var removeError = new Error("Detected container element removed from DOM");
                            return promise_ZalgoPromise.delay(1).then((function() {
                                if (!isElementClosed(innerContainer)) {
                                    clean.all(removeError);
                                    return rerender().then(resolveInitPromise, rejectInitPromise);
                                }
                                close(removeError);
                            }));
                        }));
                        clean.register((function() {
                            return containerWatcher.cancel();
                        }));
                        clean.register((function() {
                            return destroyElement(innerContainer);
                        }));
                        return currentProxyContainer = getProxyObject(innerContainer);
                    }
                }));
            };
            var getHelpers = function() {
                return {
                    state: state,
                    event: event,
                    close: close,
                    focus: focus,
                    resize: resize,
                    onError: onError,
                    updateProps: updateProps,
                    show: show,
                    hide: hide
                };
            };
            var setProps = function(newInputProps) {
                void 0 === newInputProps && (newInputProps = {});
                var container = currentContainer;
                var helpers = getHelpers();
                extend(inputProps, newInputProps);
                !function(propsDef, existingProps, inputProps, helpers, container) {
                    var state = helpers.state, close = helpers.close, focus = helpers.focus, event = helpers.event, onError = helpers.onError;
                    eachProp(inputProps, propsDef, (function(key, propDef, val) {
                        var valueDetermined = !1;
                        var value = val;
                        Object.defineProperty(existingProps, key, {
                            configurable: !0,
                            enumerable: !0,
                            get: function() {
                                if (valueDetermined) return value;
                                valueDetermined = !0;
                                return function() {
                                    if (!propDef) return value;
                                    var alias = propDef.alias;
                                    alias && !isDefined(val) && isDefined(inputProps[alias]) && (value = inputProps[alias]);
                                    propDef.value && (value = propDef.value({
                                        props: existingProps,
                                        state: state,
                                        close: close,
                                        focus: focus,
                                        event: event,
                                        onError: onError,
                                        container: container
                                    }));
                                    !propDef.default || isDefined(value) || isDefined(inputProps[key]) || (value = propDef.default({
                                        props: existingProps,
                                        state: state,
                                        close: close,
                                        focus: focus,
                                        event: event,
                                        onError: onError,
                                        container: container
                                    }));
                                    if (isDefined(value)) {
                                        if (propDef.type === PROP_TYPE.ARRAY ? !Array.isArray(value) : typeof value !== propDef.type) throw new TypeError("Prop is not of type " + propDef.type + ": " + key);
                                    } else if (!1 !== propDef.required && !isDefined(inputProps[key])) throw new Error('Expected prop "' + key + '" to be defined');
                                    isDefined(value) && propDef.decorate && (value = propDef.decorate({
                                        value: value,
                                        props: existingProps,
                                        state: state,
                                        close: close,
                                        focus: focus,
                                        event: event,
                                        onError: onError,
                                        container: container
                                    }));
                                    return value;
                                }();
                            }
                        });
                    }));
                    eachProp(existingProps, propsDef, src_util_noop);
                }(propsDef, props, inputProps, helpers, container);
            };
            var updateProps = function(newProps) {
                setProps(newProps);
                return initPromise.then((function() {
                    var child = childComponent;
                    var proxyWin = currentProxyWin;
                    if (child && proxyWin && currentChildDomain) return getPropsForChild(currentChildDomain).then((function(childProps) {
                        return child.updateProps(childProps).catch((function(err) {
                            return checkWindowClose(proxyWin).then((function(closed) {
                                if (!closed) throw err;
                            }));
                        }));
                    }));
                }));
            };
            var getProxyContainer = function(container) {
                return getProxyContainerOverride ? getProxyContainerOverride(container) : promise_ZalgoPromise.try((function() {
                    return elementReady(container);
                })).then((function(containerElement) {
                    isShadowElement(containerElement) && (containerElement = function insertShadowSlot(element) {
                        var shadowHost = function(element) {
                            var shadowRoot = function(element) {
                                for (;element.parentNode; ) element = element.parentNode;
                                if (isShadowElement(element)) return element;
                            }(element);
                            if (shadowRoot && shadowRoot.host) return shadowRoot.host;
                        }(element);
                        if (!shadowHost) throw new Error("Element is not in shadow dom");
                        var slotName = "shadow-slot-" + uniqueID();
                        var slot = document.createElement("slot");
                        slot.setAttribute("name", slotName);
                        element.appendChild(slot);
                        var slotProvider = document.createElement("div");
                        slotProvider.setAttribute("slot", slotName);
                        shadowHost.appendChild(slotProvider);
                        return isShadowElement(shadowHost) ? insertShadowSlot(slotProvider) : slotProvider;
                    }(containerElement));
                    currentContainer = containerElement;
                    return getProxyObject(containerElement);
                }));
            };
            return {
                init: function() {
                    !function() {
                        event.on(EVENT.RENDER, (function() {
                            return props.onRender();
                        }));
                        event.on(EVENT.DISPLAY, (function() {
                            return props.onDisplay();
                        }));
                        event.on(EVENT.RENDERED, (function() {
                            return props.onRendered();
                        }));
                        event.on(EVENT.CLOSE, (function() {
                            return props.onClose();
                        }));
                        event.on(EVENT.DESTROY, (function() {
                            return props.onDestroy();
                        }));
                        event.on(EVENT.RESIZE, (function() {
                            return props.onResize();
                        }));
                        event.on(EVENT.FOCUS, (function() {
                            return props.onFocus();
                        }));
                        event.on(EVENT.PROPS, (function(newProps) {
                            return props.onProps(newProps);
                        }));
                        event.on(EVENT.ERROR, (function(err) {
                            return props && props.onError ? props.onError(err) : rejectInitPromise(err).then((function() {
                                setTimeout((function() {
                                    throw err;
                                }), 1);
                            }));
                        }));
                        clean.register(event.reset);
                    }();
                },
                render: function(_ref14) {
                    var target = _ref14.target, container = _ref14.container, context = _ref14.context, rerender = _ref14.rerender;
                    return promise_ZalgoPromise.try((function() {
                        var initialChildDomain = getInitialChildDomain();
                        var childDomainMatch = domainMatch || getInitialChildDomain();
                        !function(target, childDomainMatch, container) {
                            if (target !== window) {
                                if (!isSameTopWindow(window, target)) throw new Error("Can only renderTo an adjacent frame");
                                var origin = getDomain();
                                if (!matchDomain(childDomainMatch, origin) && !isSameDomain(target)) throw new Error("Can not render remotely to " + childDomainMatch.toString() + " - can only render to " + origin);
                                if (container && "string" != typeof container) throw new Error("Container passed to renderTo must be a string selector, got " + typeof container + " }");
                            }
                        }(target, childDomainMatch, container);
                        var delegatePromise = promise_ZalgoPromise.try((function() {
                            if (target !== window) return function(context, target) {
                                var delegateProps = {};
                                for (var _i4 = 0, _Object$keys4 = Object.keys(props); _i4 < _Object$keys4.length; _i4++) {
                                    var propName = _Object$keys4[_i4];
                                    var propDef = propsDef[propName];
                                    propDef && propDef.allowDelegate && (delegateProps[propName] = props[propName]);
                                }
                                var childOverridesPromise = send_send(target, "zoid_delegate_" + name, {
                                    uid: uid,
                                    overrides: {
                                        props: delegateProps,
                                        event: event,
                                        close: close,
                                        onError: onError,
                                        getInternalState: getInternalState,
                                        setInternalState: setInternalState,
                                        resolveInitPromise: resolveInitPromise,
                                        rejectInitPromise: rejectInitPromise
                                    }
                                }).then((function(_ref13) {
                                    var parentComp = _ref13.data.parent;
                                    clean.register((function(err) {
                                        if (!isWindowClosed(target)) return parentComp.destroy(err);
                                    }));
                                    return parentComp.getDelegateOverrides();
                                })).catch((function(err) {
                                    throw new Error("Unable to delegate rendering. Possibly the component is not loaded in the target window.\n\n" + stringifyError(err));
                                }));
                                getProxyContainerOverride = function() {
                                    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) args[_key] = arguments[_key];
                                    return childOverridesPromise.then((function(childOverrides) {
                                        return childOverrides.getProxyContainer.apply(childOverrides, args);
                                    }));
                                };
                                renderContainerOverride = function() {
                                    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) args[_key2] = arguments[_key2];
                                    return childOverridesPromise.then((function(childOverrides) {
                                        return childOverrides.renderContainer.apply(childOverrides, args);
                                    }));
                                };
                                showOverride = function() {
                                    for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) args[_key3] = arguments[_key3];
                                    return childOverridesPromise.then((function(childOverrides) {
                                        return childOverrides.show.apply(childOverrides, args);
                                    }));
                                };
                                hideOverride = function() {
                                    for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) args[_key4] = arguments[_key4];
                                    return childOverridesPromise.then((function(childOverrides) {
                                        return childOverrides.hide.apply(childOverrides, args);
                                    }));
                                };
                                watchForUnloadOverride = function() {
                                    for (var _len5 = arguments.length, args = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) args[_key5] = arguments[_key5];
                                    return childOverridesPromise.then((function(childOverrides) {
                                        return childOverrides.watchForUnload.apply(childOverrides, args);
                                    }));
                                };
                                if (context === CONTEXT.IFRAME) {
                                    getProxyWindowOverride = function() {
                                        for (var _len6 = arguments.length, args = new Array(_len6), _key6 = 0; _key6 < _len6; _key6++) args[_key6] = arguments[_key6];
                                        return childOverridesPromise.then((function(childOverrides) {
                                            return childOverrides.getProxyWindow.apply(childOverrides, args);
                                        }));
                                    };
                                    openFrameOverride = function() {
                                        for (var _len7 = arguments.length, args = new Array(_len7), _key7 = 0; _key7 < _len7; _key7++) args[_key7] = arguments[_key7];
                                        return childOverridesPromise.then((function(childOverrides) {
                                            return childOverrides.openFrame.apply(childOverrides, args);
                                        }));
                                    };
                                    openPrerenderFrameOverride = function() {
                                        for (var _len8 = arguments.length, args = new Array(_len8), _key8 = 0; _key8 < _len8; _key8++) args[_key8] = arguments[_key8];
                                        return childOverridesPromise.then((function(childOverrides) {
                                            return childOverrides.openPrerenderFrame.apply(childOverrides, args);
                                        }));
                                    };
                                    prerenderOverride = function() {
                                        for (var _len9 = arguments.length, args = new Array(_len9), _key9 = 0; _key9 < _len9; _key9++) args[_key9] = arguments[_key9];
                                        return childOverridesPromise.then((function(childOverrides) {
                                            return childOverrides.prerender.apply(childOverrides, args);
                                        }));
                                    };
                                    openOverride = function() {
                                        for (var _len10 = arguments.length, args = new Array(_len10), _key10 = 0; _key10 < _len10; _key10++) args[_key10] = arguments[_key10];
                                        return childOverridesPromise.then((function(childOverrides) {
                                            return childOverrides.open.apply(childOverrides, args);
                                        }));
                                    };
                                    openPrerenderOverride = function() {
                                        for (var _len11 = arguments.length, args = new Array(_len11), _key11 = 0; _key11 < _len11; _key11++) args[_key11] = arguments[_key11];
                                        return childOverridesPromise.then((function(childOverrides) {
                                            return childOverrides.openPrerender.apply(childOverrides, args);
                                        }));
                                    };
                                } else context === CONTEXT.POPUP && (setProxyWinOverride = function() {
                                    for (var _len12 = arguments.length, args = new Array(_len12), _key12 = 0; _key12 < _len12; _key12++) args[_key12] = arguments[_key12];
                                    return childOverridesPromise.then((function(childOverrides) {
                                        return childOverrides.setProxyWin.apply(childOverrides, args);
                                    }));
                                });
                                return childOverridesPromise;
                            }(context, target);
                        }));
                        var windowProp = props.window;
                        var watchForUnloadPromise = watchForUnload();
                        var buildBodyPromise = serializeProps(propsDef, props, "post");
                        var onRenderPromise = event.trigger(EVENT.RENDER);
                        var getProxyContainerPromise = getProxyContainer(container);
                        var getProxyWindowPromise = getProxyWindow();
                        var finalSetPropsPromise = getProxyContainerPromise.then((function() {
                            return setProps();
                        }));
                        var buildUrlPromise = finalSetPropsPromise.then((function() {
                            return serializeProps(propsDef, props, "get").then((function(query) {
                                return function(url, options) {
                                    var query = options.query || {};
                                    var hash = options.hash || {};
                                    var originalUrl;
                                    var originalHash;
                                    var _url$split = url.split("#");
                                    originalHash = _url$split[1];
                                    var _originalUrl$split = (originalUrl = _url$split[0]).split("?");
                                    originalUrl = _originalUrl$split[0];
                                    var queryString = extendQuery(_originalUrl$split[1], query);
                                    var hashString = extendQuery(originalHash, hash);
                                    queryString && (originalUrl = originalUrl + "?" + queryString);
                                    hashString && (originalUrl = originalUrl + "#" + hashString);
                                    return originalUrl;
                                }(normalizeMockUrl(getUrl()), {
                                    query: query
                                });
                            }));
                        }));
                        var buildWindowNamePromise = getProxyWindowPromise.then((function(proxyWin) {
                            return function(_temp2) {
                                var _ref6 = void 0 === _temp2 ? {} : _temp2, proxyWin = _ref6.proxyWin, initialChildDomain = _ref6.initialChildDomain, childDomainMatch = _ref6.childDomainMatch, _ref6$target = _ref6.target, target = void 0 === _ref6$target ? window : _ref6$target, context = _ref6.context;
                                return function(_temp) {
                                    var _ref5 = void 0 === _temp ? {} : _temp, proxyWin = _ref5.proxyWin, childDomainMatch = _ref5.childDomainMatch, context = _ref5.context;
                                    return getPropsForChild(_ref5.initialChildDomain).then((function(childProps) {
                                        return {
                                            uid: uid,
                                            context: context,
                                            tag: tag,
                                            childDomainMatch: childDomainMatch,
                                            version: "9_0_86",
                                            props: childProps,
                                            exports: (win = proxyWin, {
                                                init: function(childExports) {
                                                    return initChild(this.origin, childExports);
                                                },
                                                close: close,
                                                checkClose: function() {
                                                    return checkWindowClose(win);
                                                },
                                                resize: resize,
                                                onError: onError,
                                                show: show,
                                                hide: hide,
                                                export: xport
                                            })
                                        };
                                        var win;
                                    }));
                                }({
                                    proxyWin: proxyWin,
                                    initialChildDomain: initialChildDomain,
                                    childDomainMatch: childDomainMatch,
                                    context: context
                                }).then((function(childPayload) {
                                    var _crossDomainSerialize = crossDomainSerialize({
                                        data: childPayload,
                                        metaData: {
                                            windowRef: getWindowRef(target, initialChildDomain, context, proxyWin)
                                        },
                                        sender: {
                                            domain: getDomain(window)
                                        },
                                        receiver: {
                                            win: proxyWin,
                                            domain: childDomainMatch
                                        },
                                        passByReference: initialChildDomain === getDomain()
                                    }), serializedData = _crossDomainSerialize.serializedData;
                                    clean.register(_crossDomainSerialize.cleanReference);
                                    return serializedData;
                                }));
                            }({
                                proxyWin: (_ref7 = {
                                    proxyWin: proxyWin,
                                    initialChildDomain: initialChildDomain,
                                    childDomainMatch: childDomainMatch,
                                    target: target,
                                    context: context
                                }).proxyWin,
                                initialChildDomain: _ref7.initialChildDomain,
                                childDomainMatch: _ref7.childDomainMatch,
                                target: _ref7.target,
                                context: _ref7.context
                            }).then((function(serializedPayload) {
                                return buildChildWindowName({
                                    name: name,
                                    serializedPayload: serializedPayload
                                });
                            }));
                            var _ref7;
                        }));
                        var openFramePromise = buildWindowNamePromise.then((function(windowName) {
                            return openFrame(context, {
                                windowName: windowName
                            });
                        }));
                        var openPrerenderFramePromise = openPrerenderFrame(context);
                        var renderContainerPromise = promise_ZalgoPromise.hash({
                            proxyContainer: getProxyContainerPromise,
                            proxyFrame: openFramePromise,
                            proxyPrerenderFrame: openPrerenderFramePromise
                        }).then((function(_ref15) {
                            return renderContainer(_ref15.proxyContainer, {
                                context: context,
                                proxyFrame: _ref15.proxyFrame,
                                proxyPrerenderFrame: _ref15.proxyPrerenderFrame,
                                rerender: rerender
                            });
                        })).then((function(proxyContainer) {
                            return proxyContainer;
                        }));
                        var openPromise = promise_ZalgoPromise.hash({
                            windowName: buildWindowNamePromise,
                            proxyFrame: openFramePromise,
                            proxyWin: getProxyWindowPromise
                        }).then((function(_ref16) {
                            var proxyWin = _ref16.proxyWin;
                            return windowProp ? proxyWin : open(context, {
                                windowName: _ref16.windowName,
                                proxyWin: proxyWin,
                                proxyFrame: _ref16.proxyFrame
                            });
                        }));
                        var openPrerenderPromise = promise_ZalgoPromise.hash({
                            proxyWin: openPromise,
                            proxyPrerenderFrame: openPrerenderFramePromise
                        }).then((function(_ref17) {
                            return openPrerender(context, _ref17.proxyWin, _ref17.proxyPrerenderFrame);
                        }));
                        var setStatePromise = openPromise.then((function(proxyWin) {
                            currentProxyWin = proxyWin;
                            return setProxyWin(proxyWin);
                        }));
                        var prerenderPromise = promise_ZalgoPromise.hash({
                            proxyPrerenderWin: openPrerenderPromise,
                            state: setStatePromise
                        }).then((function(_ref18) {
                            return prerender(_ref18.proxyPrerenderWin, {
                                context: context
                            });
                        }));
                        var setWindowNamePromise = promise_ZalgoPromise.hash({
                            proxyWin: openPromise,
                            windowName: buildWindowNamePromise
                        }).then((function(_ref19) {
                            if (windowProp) return _ref19.proxyWin.setName(_ref19.windowName);
                        }));
                        var getMethodPromise = promise_ZalgoPromise.hash({
                            body: buildBodyPromise
                        }).then((function(_ref20) {
                            return options.method ? options.method : Object.keys(_ref20.body).length ? "post" : "get";
                        }));
                        var loadUrlPromise = promise_ZalgoPromise.hash({
                            proxyWin: openPromise,
                            windowUrl: buildUrlPromise,
                            body: buildBodyPromise,
                            method: getMethodPromise,
                            windowName: setWindowNamePromise,
                            prerender: prerenderPromise
                        }).then((function(_ref21) {
                            return _ref21.proxyWin.setLocation(_ref21.windowUrl, {
                                method: _ref21.method,
                                body: _ref21.body
                            });
                        }));
                        var watchForClosePromise = openPromise.then((function(proxyWin) {
                            !function watchForClose(proxyWin, context) {
                                var cancelled = !1;
                                clean.register((function() {
                                    cancelled = !0;
                                }));
                                return promise_ZalgoPromise.delay(2e3).then((function() {
                                    return proxyWin.isClosed();
                                })).then((function(isClosed) {
                                    if (!cancelled) return isClosed ? close(new Error("Detected " + context + " close")) : watchForClose(proxyWin, context);
                                }));
                            }(proxyWin, context);
                        }));
                        var onDisplayPromise = promise_ZalgoPromise.hash({
                            container: renderContainerPromise,
                            prerender: prerenderPromise
                        }).then((function() {
                            return event.trigger(EVENT.DISPLAY);
                        }));
                        var openBridgePromise = openPromise.then((function(proxyWin) {
                            return function(proxyWin, initialChildDomain, context) {
                                return promise_ZalgoPromise.try((function() {
                                    return proxyWin.awaitWindow();
                                })).then((function(win) {
                                    if (src_bridge && src_bridge.needsBridge({
                                        win: win,
                                        domain: initialChildDomain
                                    }) && !src_bridge.hasBridge(initialChildDomain, initialChildDomain)) {
                                        var bridgeUrl = "function" == typeof options.bridgeUrl ? options.bridgeUrl({
                                            props: props
                                        }) : options.bridgeUrl;
                                        if (!bridgeUrl) throw new Error("Bridge needed to render " + context);
                                        var bridgeDomain = getDomainFromUrl(bridgeUrl);
                                        src_bridge.linkUrl(win, initialChildDomain);
                                        return src_bridge.openBridge(normalizeMockUrl(bridgeUrl), bridgeDomain);
                                    }
                                }));
                            }(proxyWin, initialChildDomain, context);
                        }));
                        var runTimeoutPromise = loadUrlPromise.then((function() {
                            return promise_ZalgoPromise.try((function() {
                                var timeout = props.timeout;
                                if (timeout) return initPromise.timeout(timeout, new Error("Loading component timed out after " + timeout + " milliseconds"));
                            }));
                        }));
                        var onRenderedPromise = initPromise.then((function() {
                            return event.trigger(EVENT.RENDERED);
                        }));
                        return promise_ZalgoPromise.hash({
                            initPromise: initPromise,
                            buildUrlPromise: buildUrlPromise,
                            onRenderPromise: onRenderPromise,
                            getProxyContainerPromise: getProxyContainerPromise,
                            openFramePromise: openFramePromise,
                            openPrerenderFramePromise: openPrerenderFramePromise,
                            renderContainerPromise: renderContainerPromise,
                            openPromise: openPromise,
                            openPrerenderPromise: openPrerenderPromise,
                            setStatePromise: setStatePromise,
                            prerenderPromise: prerenderPromise,
                            loadUrlPromise: loadUrlPromise,
                            buildWindowNamePromise: buildWindowNamePromise,
                            setWindowNamePromise: setWindowNamePromise,
                            watchForClosePromise: watchForClosePromise,
                            onDisplayPromise: onDisplayPromise,
                            openBridgePromise: openBridgePromise,
                            runTimeoutPromise: runTimeoutPromise,
                            onRenderedPromise: onRenderedPromise,
                            delegatePromise: delegatePromise,
                            watchForUnloadPromise: watchForUnloadPromise,
                            finalSetPropsPromise: finalSetPropsPromise
                        });
                    })).catch((function(err) {
                        return promise_ZalgoPromise.all([ onError(err), destroy(err) ]).then((function() {
                            throw err;
                        }), (function() {
                            throw err;
                        }));
                    })).then(src_util_noop);
                },
                destroy: destroy,
                getProps: function() {
                    return props;
                },
                setProps: setProps,
                export: xport,
                getHelpers: getHelpers,
                getDelegateOverrides: function() {
                    return promise_ZalgoPromise.try((function() {
                        return {
                            getProxyContainer: getProxyContainer,
                            show: show,
                            hide: hide,
                            renderContainer: renderContainer,
                            getProxyWindow: getProxyWindow,
                            watchForUnload: watchForUnload,
                            openFrame: openFrame,
                            openPrerenderFrame: openPrerenderFrame,
                            prerender: prerender,
                            open: open,
                            openPrerender: openPrerender,
                            setProxyWin: setProxyWin
                        };
                    }));
                },
                getExports: function() {
                    return xports({
                        getExports: function() {
                            return exportsPromise;
                        }
                    });
                }
            };
        }
        var react = {
            register: function(tag, propsDef, init, _ref) {
                var React = _ref.React, ReactDOM = _ref.ReactDOM;
                return function(_React$Component) {
                    _inheritsLoose(_class, _React$Component);
                    function _class() {
                        return _React$Component.apply(this, arguments) || this;
                    }
                    var _proto = _class.prototype;
                    _proto.render = function() {
                        return React.createElement("div", null);
                    };
                    _proto.componentDidMount = function() {
                        var el = ReactDOM.findDOMNode(this);
                        var parent = init(extend({}, this.props));
                        parent.render(el, CONTEXT.IFRAME);
                        this.setState({
                            parent: parent
                        });
                    };
                    _proto.componentDidUpdate = function() {
                        this.state && this.state.parent && this.state.parent.updateProps(extend({}, this.props)).catch(src_util_noop);
                    };
                    return _class;
                }(React.Component);
            }
        };
        var vue = {
            register: function(tag, propsDef, init, Vue) {
                return Vue.component(tag, {
                    render: function(createElement) {
                        return createElement("div");
                    },
                    inheritAttrs: !1,
                    mounted: function() {
                        var el = this.$el;
                        this.parent = init(_extends({}, (props = this.$attrs, Object.keys(props).reduce((function(acc, key) {
                            var value = props[key];
                            if ("style-object" === key || "styleObject" === key) {
                                acc.style = value;
                                acc.styleObject = value;
                            } else key.includes("-") ? acc[dasherizeToCamel(key)] = value : acc[key] = value;
                            return acc;
                        }), {}))));
                        var props;
                        this.parent.render(el, CONTEXT.IFRAME);
                    },
                    watch: {
                        $attrs: {
                            handler: function() {
                                this.parent && this.$attrs && this.parent.updateProps(_extends({}, this.$attrs)).catch(src_util_noop);
                            },
                            deep: !0
                        }
                    }
                });
            }
        };
        var vue3 = {
            register: function(tag, propsDef, init) {
                return {
                    template: "<div></div>",
                    inheritAttrs: !1,
                    mounted: function() {
                        var el = this.$el;
                        this.parent = init(_extends({}, (props = this.$attrs, Object.keys(props).reduce((function(acc, key) {
                            var value = props[key];
                            if ("style-object" === key || "styleObject" === key) {
                                acc.style = value;
                                acc.styleObject = value;
                            } else key.includes("-") ? acc[dasherizeToCamel(key)] = value : acc[key] = value;
                            return acc;
                        }), {}))));
                        var props;
                        this.parent.render(el, CONTEXT.IFRAME);
                    },
                    watch: {
                        $attrs: {
                            handler: function() {
                                this.parent && this.$attrs && this.parent.updateProps(_extends({}, this.$attrs)).catch(src_util_noop);
                            },
                            deep: !0
                        }
                    }
                };
            }
        };
        var angular = {
            register: function(tag, propsDef, init, ng) {
                return ng.module(tag, []).directive(dasherizeToCamel(tag), (function() {
                    var scope = {};
                    for (var _i2 = 0, _Object$keys2 = Object.keys(propsDef); _i2 < _Object$keys2.length; _i2++) scope[_Object$keys2[_i2]] = "=";
                    scope.props = "=";
                    return {
                        scope: scope,
                        restrict: "E",
                        controller: [ "$scope", "$element", function($scope, $element) {
                            function safeApply() {
                                if ("$apply" !== $scope.$root.$$phase && "$digest" !== $scope.$root.$$phase) try {
                                    $scope.$apply();
                                } catch (err) {}
                            }
                            var getProps = function() {
                                return replaceObject($scope.props, (function(item) {
                                    return "function" == typeof item ? function() {
                                        var result = item.apply(this, arguments);
                                        safeApply();
                                        return result;
                                    } : item;
                                }));
                            };
                            var instance = init(getProps());
                            instance.render($element[0], CONTEXT.IFRAME);
                            $scope.$watch((function() {
                                instance.updateProps(getProps()).catch(src_util_noop);
                            }));
                        } ]
                    };
                }));
            }
        };
        var angular2 = {
            register: function(tag, propsDef, init, _ref) {
                var AngularComponent = _ref.Component, NgModule = _ref.NgModule, ElementRef = _ref.ElementRef, NgZone = _ref.NgZone, Inject = _ref.Inject;
                var ComponentInstance = function() {
                    function ComponentInstance(elementRef, zone) {
                        this.elementRef = void 0;
                        this.internalProps = void 0;
                        this.parent = void 0;
                        this.props = void 0;
                        this.zone = void 0;
                        this._props = void 0;
                        this._props = {};
                        this.elementRef = elementRef;
                        this.zone = zone;
                    }
                    var _proto = ComponentInstance.prototype;
                    _proto.getProps = function() {
                        var _this = this;
                        return replaceObject(_extends({}, this.internalProps, this.props), (function(item) {
                            if ("function" == typeof item) {
                                var zone = _this.zone;
                                return function() {
                                    var _arguments = arguments, _this2 = this;
                                    return zone.run((function() {
                                        return item.apply(_this2, _arguments);
                                    }));
                                };
                            }
                            return item;
                        }));
                    };
                    _proto.ngOnInit = function() {
                        var targetElement = this.elementRef.nativeElement;
                        this.parent = init(this.getProps());
                        this.parent.render(targetElement, CONTEXT.IFRAME);
                    };
                    _proto.ngDoCheck = function() {
                        if (this.parent && !function(obj1, obj2) {
                            var checked = {};
                            for (var key in obj1) if (obj1.hasOwnProperty(key)) {
                                checked[key] = !0;
                                if (obj1[key] !== obj2[key]) return !1;
                            }
                            for (var _key in obj2) if (!checked[_key]) return !1;
                            return !0;
                        }(this._props, this.props)) {
                            this._props = _extends({}, this.props);
                            this.parent.updateProps(this.getProps());
                        }
                    };
                    return ComponentInstance;
                }();
                ComponentInstance.annotations = void 0;
                ComponentInstance.parameters = void 0;
                ComponentInstance.parameters = [ [ new Inject(ElementRef) ], [ new Inject(NgZone) ] ];
                ComponentInstance.annotations = [ new AngularComponent({
                    selector: tag,
                    template: "<div></div>",
                    inputs: [ "props" ]
                }) ];
                var ModuleInstance = function() {};
                ModuleInstance.annotations = void 0;
                ModuleInstance.annotations = [ new NgModule({
                    declarations: [ ComponentInstance ],
                    exports: [ ComponentInstance ]
                }) ];
                return ModuleInstance;
            }
        };
        function defaultContainerTemplate(_ref) {
            var uid = _ref.uid, frame = _ref.frame, prerenderFrame = _ref.prerenderFrame, doc = _ref.doc, props = _ref.props, event = _ref.event, dimensions = _ref.dimensions;
            var width = dimensions.width, height = dimensions.height;
            if (frame && prerenderFrame) {
                var div = doc.createElement("div");
                div.setAttribute("id", uid);
                var style = doc.createElement("style");
                props.cspNonce && style.setAttribute("nonce", props.cspNonce);
                style.appendChild(doc.createTextNode("\n            #" + uid + " {\n                display: inline-block;\n                position: relative;\n                width: " + width + ";\n                height: " + height + ";\n            }\n\n            #" + uid + " > iframe {\n                display: inline-block;\n                position: absolute;\n                width: 100%;\n                height: 100%;\n                top: 0;\n                left: 0;\n                transition: opacity .2s ease-in-out;\n            }\n\n            #" + uid + " > iframe.zoid-invisible {\n                opacity: 0;\n            }\n\n            #" + uid + " > iframe.zoid-visible {\n                opacity: 1;\n        }\n        "));
                div.appendChild(frame);
                div.appendChild(prerenderFrame);
                div.appendChild(style);
                prerenderFrame.classList.add("zoid-visible");
                frame.classList.add("zoid-invisible");
                event.on(EVENT.RENDERED, (function() {
                    prerenderFrame.classList.remove("zoid-visible");
                    prerenderFrame.classList.add("zoid-invisible");
                    frame.classList.remove("zoid-invisible");
                    frame.classList.add("zoid-visible");
                    setTimeout((function() {
                        destroyElement(prerenderFrame);
                    }), 1);
                }));
                event.on(EVENT.RESIZE, (function(_ref2) {
                    var newWidth = _ref2.width, newHeight = _ref2.height;
                    "number" == typeof newWidth && (div.style.width = toCSS(newWidth));
                    "number" == typeof newHeight && (div.style.height = toCSS(newHeight));
                }));
                return div;
            }
        }
        function defaultPrerenderTemplate(_ref) {
            var doc = _ref.doc, props = _ref.props;
            var html = doc.createElement("html");
            var body = doc.createElement("body");
            var style = doc.createElement("style");
            var spinner = doc.createElement("div");
            spinner.classList.add("spinner");
            props.cspNonce && style.setAttribute("nonce", props.cspNonce);
            html.appendChild(body);
            body.appendChild(spinner);
            body.appendChild(style);
            style.appendChild(doc.createTextNode("\n            html, body {\n                width: 100%;\n                height: 100%;\n            }\n\n            .spinner {\n                position: fixed;\n                max-height: 60vmin;\n                max-width: 60vmin;\n                height: 40px;\n                width: 40px;\n                top: 50%;\n                left: 50%;\n                box-sizing: border-box;\n                border: 3px solid rgba(0, 0, 0, .2);\n                border-top-color: rgba(33, 128, 192, 0.8);\n                border-radius: 100%;\n                animation: rotation .7s infinite linear;\n            }\n\n            @keyframes rotation {\n                from {\n                    transform: translateX(-50%) translateY(-50%) rotate(0deg);\n                }\n                to {\n                    transform: translateX(-50%) translateY(-50%) rotate(359deg);\n                }\n            }\n        "));
            return html;
        }
        var cleanInstances = cleanup();
        var cleanZoid = cleanup();
        function component(opts) {
            var options = function(options) {
                var tag = options.tag, url = options.url, domain = options.domain, bridgeUrl = options.bridgeUrl, _options$props = options.props, props = void 0 === _options$props ? {} : _options$props, _options$dimensions = options.dimensions, dimensions = void 0 === _options$dimensions ? {} : _options$dimensions, _options$autoResize = options.autoResize, autoResize = void 0 === _options$autoResize ? {} : _options$autoResize, _options$allowedParen = options.allowedParentDomains, allowedParentDomains = void 0 === _options$allowedParen ? "*" : _options$allowedParen, _options$attributes = options.attributes, attributes = void 0 === _options$attributes ? {} : _options$attributes, _options$defaultConte = options.defaultContext, defaultContext = void 0 === _options$defaultConte ? CONTEXT.IFRAME : _options$defaultConte, _options$containerTem = options.containerTemplate, containerTemplate = void 0 === _options$containerTem ? defaultContainerTemplate : _options$containerTem, _options$prerenderTem = options.prerenderTemplate, prerenderTemplate = void 0 === _options$prerenderTem ? defaultPrerenderTemplate : _options$prerenderTem, validate = options.validate, _options$eligible = options.eligible, eligible = void 0 === _options$eligible ? function() {
                    return {
                        eligible: !0
                    };
                } : _options$eligible, _options$logger = options.logger, logger = void 0 === _options$logger ? {
                    info: src_util_noop
                } : _options$logger, _options$exports = options.exports, xportsDefinition = void 0 === _options$exports ? src_util_noop : _options$exports, method = options.method, _options$children = options.children, children = void 0 === _options$children ? function() {
                    return {};
                } : _options$children;
                var name = tag.replace(/-/g, "_");
                var propsDef = _extends({}, {
                    window: {
                        type: PROP_TYPE.OBJECT,
                        sendToChild: !1,
                        required: !1,
                        allowDelegate: !0,
                        validate: function(_ref2) {
                            var value = _ref2.value;
                            if (!isWindow(value) && !window_ProxyWindow.isProxyWindow(value)) throw new Error("Expected Window or ProxyWindow");
                            if (isWindow(value)) {
                                if (isWindowClosed(value)) throw new Error("Window is closed");
                                if (!isSameDomain(value)) throw new Error("Window is not same domain");
                            }
                        },
                        decorate: function(_ref3) {
                            return setup_toProxyWindow(_ref3.value);
                        }
                    },
                    timeout: {
                        type: PROP_TYPE.NUMBER,
                        required: !1,
                        sendToChild: !1
                    },
                    cspNonce: {
                        type: PROP_TYPE.STRING,
                        required: !1
                    },
                    onDisplay: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        allowDelegate: !0,
                        default: props_defaultNoop,
                        decorate: props_decorateOnce
                    },
                    onRendered: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        default: props_defaultNoop,
                        decorate: props_decorateOnce
                    },
                    onRender: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        default: props_defaultNoop,
                        decorate: props_decorateOnce
                    },
                    onClose: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        allowDelegate: !0,
                        default: props_defaultNoop,
                        decorate: props_decorateOnce
                    },
                    onDestroy: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        allowDelegate: !0,
                        default: props_defaultNoop,
                        decorate: props_decorateOnce
                    },
                    onResize: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        allowDelegate: !0,
                        default: props_defaultNoop
                    },
                    onFocus: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        allowDelegate: !0,
                        default: props_defaultNoop
                    },
                    close: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref4) {
                            return _ref4.close;
                        }
                    },
                    focus: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref5) {
                            return _ref5.focus;
                        }
                    },
                    resize: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref6) {
                            return _ref6.resize;
                        }
                    },
                    uid: {
                        type: PROP_TYPE.STRING,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref7) {
                            return _ref7.uid;
                        }
                    },
                    tag: {
                        type: PROP_TYPE.STRING,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref8) {
                            return _ref8.tag;
                        }
                    },
                    getParent: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref9) {
                            return _ref9.getParent;
                        }
                    },
                    getParentDomain: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref10) {
                            return _ref10.getParentDomain;
                        }
                    },
                    show: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref11) {
                            return _ref11.show;
                        }
                    },
                    hide: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref12) {
                            return _ref12.hide;
                        }
                    },
                    export: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref13) {
                            return _ref13.export;
                        }
                    },
                    onError: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref14) {
                            return _ref14.onError;
                        }
                    },
                    onProps: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref15) {
                            return _ref15.onProps;
                        }
                    },
                    getSiblings: {
                        type: PROP_TYPE.FUNCTION,
                        required: !1,
                        sendToChild: !1,
                        childDecorate: function(_ref16) {
                            return _ref16.getSiblings;
                        }
                    }
                }, props);
                if (!containerTemplate) throw new Error("Container template required");
                return {
                    name: name,
                    tag: tag,
                    url: url,
                    domain: domain,
                    bridgeUrl: bridgeUrl,
                    method: method,
                    propsDef: propsDef,
                    dimensions: dimensions,
                    autoResize: autoResize,
                    allowedParentDomains: allowedParentDomains,
                    attributes: attributes,
                    defaultContext: defaultContext,
                    containerTemplate: containerTemplate,
                    prerenderTemplate: prerenderTemplate,
                    validate: validate,
                    logger: logger,
                    eligible: eligible,
                    children: children,
                    exports: "function" == typeof xportsDefinition ? xportsDefinition : function(_ref) {
                        var getExports = _ref.getExports;
                        var result = {};
                        var _loop = function(_i2, _Object$keys2) {
                            var key = _Object$keys2[_i2];
                            var type = xportsDefinition[key].type;
                            var valuePromise = getExports().then((function(res) {
                                return res[key];
                            }));
                            result[key] = type === PROP_TYPE.FUNCTION ? function() {
                                for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) args[_key] = arguments[_key];
                                return valuePromise.then((function(value) {
                                    return value.apply(void 0, args);
                                }));
                            } : valuePromise;
                        };
                        for (var _i2 = 0, _Object$keys2 = Object.keys(xportsDefinition); _i2 < _Object$keys2.length; _i2++) _loop(_i2, _Object$keys2);
                        return result;
                    }
                };
            }(opts);
            var name = options.name, tag = options.tag, defaultContext = options.defaultContext, propsDef = options.propsDef, eligible = options.eligible, children = options.children;
            var global = lib_global_getGlobal(window);
            var driverCache = {};
            var instances = [];
            var isChild = function() {
                if (function(name) {
                    try {
                        return parseWindowName(window.name).name === name;
                    } catch (err) {}
                    return !1;
                }(name)) {
                    var _payload = getInitialParentPayload().payload;
                    if (_payload.tag === tag && matchDomain(_payload.childDomainMatch, getDomain())) return !0;
                }
                return !1;
            };
            var registerChild = memoize((function() {
                if (isChild()) {
                    if (window.xprops) {
                        delete global.components[tag];
                        throw new Error("Can not register " + name + " as child - child already registered");
                    }
                    var child = function(options) {
                        var tag = options.tag, propsDef = options.propsDef, autoResize = options.autoResize, allowedParentDomains = options.allowedParentDomains;
                        var onPropHandlers = [];
                        var _getInitialParentPayl = getInitialParentPayload(), parent = _getInitialParentPayl.parent, payload = _getInitialParentPayl.payload;
                        var parentComponentWindow = parent.win, parentDomain = parent.domain;
                        var props;
                        var exportsPromise = new promise_ZalgoPromise;
                        var version = payload.version, uid = payload.uid, parentExports = payload.exports, context = payload.context, initialProps = payload.props;
                        if ("9_0_86" !== version) throw new Error("Parent window has zoid version " + version + ", child window has version 9_0_86");
                        var show = parentExports.show, hide = parentExports.hide, close = parentExports.close, onError = parentExports.onError, checkClose = parentExports.checkClose, parentExport = parentExports.export, parentResize = parentExports.resize, parentInit = parentExports.init;
                        var getParent = function() {
                            return parentComponentWindow;
                        };
                        var getParentDomain = function() {
                            return parentDomain;
                        };
                        var onProps = function(handler) {
                            onPropHandlers.push(handler);
                            return {
                                cancel: function() {
                                    onPropHandlers.splice(onPropHandlers.indexOf(handler), 1);
                                }
                            };
                        };
                        var resize = function(_ref) {
                            return parentResize.fireAndForget({
                                width: _ref.width,
                                height: _ref.height
                            });
                        };
                        var xport = function(xports) {
                            exportsPromise.resolve(xports);
                            return parentExport(xports);
                        };
                        var getSiblings = function(_temp) {
                            var anyParent = (void 0 === _temp ? {} : _temp).anyParent;
                            var result = [];
                            var currentParent = props.parent;
                            void 0 === anyParent && (anyParent = !currentParent);
                            if (!anyParent && !currentParent) throw new Error("No parent found for " + tag + " child");
                            for (var _i2 = 0, _getAllFramesInWindow2 = getAllFramesInWindow(window); _i2 < _getAllFramesInWindow2.length; _i2++) {
                                var win = _getAllFramesInWindow2[_i2];
                                if (isSameDomain(win)) {
                                    var xprops = assertSameDomain(win).xprops;
                                    if (xprops && getParent() === xprops.getParent()) {
                                        var winParent = xprops.parent;
                                        if (anyParent || !currentParent || winParent && winParent.uid === currentParent.uid) {
                                            var xports = tryGlobal(win, (function(global) {
                                                return global.exports;
                                            }));
                                            result.push({
                                                props: xprops,
                                                exports: xports
                                            });
                                        }
                                    }
                                }
                            }
                            return result;
                        };
                        var setProps = function(newProps, origin, isUpdate) {
                            void 0 === isUpdate && (isUpdate = !1);
                            var normalizedProps = function(parentComponentWindow, propsDef, props, origin, helpers, isUpdate) {
                                void 0 === isUpdate && (isUpdate = !1);
                                var result = {};
                                for (var _i2 = 0, _Object$keys2 = Object.keys(props); _i2 < _Object$keys2.length; _i2++) {
                                    var key = _Object$keys2[_i2];
                                    var prop = propsDef[key];
                                    if (!prop || !prop.sameDomain || origin === getDomain(window) && isSameDomain(parentComponentWindow)) {
                                        var value = normalizeChildProp(propsDef, 0, key, props[key], helpers);
                                        result[key] = value;
                                        prop && prop.alias && !result[prop.alias] && (result[prop.alias] = value);
                                    }
                                }
                                if (!isUpdate) for (var _i4 = 0, _Object$keys4 = Object.keys(propsDef); _i4 < _Object$keys4.length; _i4++) {
                                    var _key = _Object$keys4[_i4];
                                    props.hasOwnProperty(_key) || (result[_key] = normalizeChildProp(propsDef, 0, _key, void 0, helpers));
                                }
                                return result;
                            }(parentComponentWindow, propsDef, newProps, origin, {
                                tag: tag,
                                show: show,
                                hide: hide,
                                close: close,
                                focus: child_focus,
                                onError: onError,
                                resize: resize,
                                getSiblings: getSiblings,
                                onProps: onProps,
                                getParent: getParent,
                                getParentDomain: getParentDomain,
                                uid: uid,
                                export: xport
                            }, isUpdate);
                            props ? extend(props, normalizedProps) : props = normalizedProps;
                            for (var _i4 = 0; _i4 < onPropHandlers.length; _i4++) (0, onPropHandlers[_i4])(props);
                        };
                        var updateProps = function(newProps) {
                            return promise_ZalgoPromise.try((function() {
                                return setProps(newProps, parentDomain, !0);
                            }));
                        };
                        return {
                            init: function() {
                                return promise_ZalgoPromise.try((function() {
                                    isSameDomain(parentComponentWindow) && function(_ref3) {
                                        var componentName = _ref3.componentName, parentComponentWindow = _ref3.parentComponentWindow;
                                        var _crossDomainDeseriali2 = crossDomainDeserialize({
                                            data: parseWindowName(window.name).serializedInitialPayload,
                                            sender: {
                                                win: parentComponentWindow
                                            },
                                            basic: !0
                                        }), sender = _crossDomainDeseriali2.sender;
                                        if ("uid" === _crossDomainDeseriali2.reference.type || "global" === _crossDomainDeseriali2.metaData.windowRef.type) {
                                            var _crossDomainSerialize = crossDomainSerialize({
                                                data: _crossDomainDeseriali2.data,
                                                metaData: {
                                                    windowRef: window_getWindowRef(parentComponentWindow)
                                                },
                                                sender: {
                                                    domain: sender.domain
                                                },
                                                receiver: {
                                                    win: window,
                                                    domain: getDomain()
                                                },
                                                basic: !0
                                            });
                                            window.name = buildChildWindowName({
                                                name: componentName,
                                                serializedPayload: _crossDomainSerialize.serializedData
                                            });
                                        }
                                    }({
                                        componentName: options.name,
                                        parentComponentWindow: parentComponentWindow
                                    });
                                    lib_global_getGlobal(window).exports = options.exports({
                                        getExports: function() {
                                            return exportsPromise;
                                        }
                                    });
                                    !function(allowedParentDomains, domain) {
                                        if (!matchDomain(allowedParentDomains, domain)) throw new Error("Can not be rendered by domain: " + domain);
                                    }(allowedParentDomains, parentDomain);
                                    markWindowKnown(parentComponentWindow);
                                    !function() {
                                        window.addEventListener("beforeunload", (function() {
                                            checkClose.fireAndForget();
                                        }));
                                        window.addEventListener("unload", (function() {
                                            checkClose.fireAndForget();
                                        }));
                                        onCloseWindow(parentComponentWindow, (function() {
                                            child_destroy();
                                        }));
                                    }();
                                    return parentInit({
                                        updateProps: updateProps,
                                        close: child_destroy
                                    });
                                })).then((function() {
                                    return (_autoResize$width = autoResize.width, width = void 0 !== _autoResize$width && _autoResize$width, 
                                    _autoResize$height = autoResize.height, height = void 0 !== _autoResize$height && _autoResize$height, 
                                    _autoResize$element = autoResize.element, elementReady(void 0 === _autoResize$element ? "body" : _autoResize$element).catch(src_util_noop).then((function(element) {
                                        return {
                                            width: width,
                                            height: height,
                                            element: element
                                        };
                                    }))).then((function(_ref3) {
                                        var width = _ref3.width, height = _ref3.height, element = _ref3.element;
                                        element && (width || height) && context !== CONTEXT.POPUP && onResize(element, (function(_ref4) {
                                            resize({
                                                width: width ? _ref4.width : void 0,
                                                height: height ? _ref4.height : void 0
                                            });
                                        }), {
                                            width: width,
                                            height: height
                                        });
                                    }));
                                    var _autoResize$width, width, _autoResize$height, height, _autoResize$element;
                                })).catch((function(err) {
                                    onError(err);
                                }));
                            },
                            getProps: function() {
                                if (props) return props;
                                setProps(initialProps, parentDomain);
                                return props;
                            }
                        };
                    }(options);
                    child.init();
                    return child;
                }
            }));
            var init = function init(inputProps) {
                var instance;
                var uid = "zoid-" + tag + "-" + uniqueID();
                var props = inputProps || {};
                var _eligible = eligible({
                    props: props
                }), eligibility = _eligible.eligible, reason = _eligible.reason;
                var onDestroy = props.onDestroy;
                props.onDestroy = function() {
                    instance && eligibility && instances.splice(instances.indexOf(instance), 1);
                    if (onDestroy) return onDestroy.apply(void 0, arguments);
                };
                var parent = parentComponent({
                    uid: uid,
                    options: options
                });
                parent.init();
                eligibility ? parent.setProps(props) : props.onDestroy && props.onDestroy();
                cleanInstances.register((function(err) {
                    return parent.destroy(err || new Error("zoid destroyed all components"));
                }));
                var clone = function(_temp) {
                    var _ref4$decorate = (void 0 === _temp ? {} : _temp).decorate;
                    return init((void 0 === _ref4$decorate ? identity : _ref4$decorate)(props));
                };
                var _render = function(target, container, context) {
                    return promise_ZalgoPromise.try((function() {
                        if (!eligibility) {
                            var err = new Error(reason || name + " component is not eligible");
                            return parent.destroy(err).then((function() {
                                throw err;
                            }));
                        }
                        if (!isWindow(target)) throw new Error("Must pass window to renderTo");
                        return function(props, context) {
                            return promise_ZalgoPromise.try((function() {
                                if (props.window) return setup_toProxyWindow(props.window).getType();
                                if (context) {
                                    if (context !== CONTEXT.IFRAME && context !== CONTEXT.POPUP) throw new Error("Unrecognized context: " + context);
                                    return context;
                                }
                                return defaultContext;
                            }));
                        }(props, context);
                    })).then((function(finalContext) {
                        container = function(context, container) {
                            if (container) {
                                if ("string" != typeof container && !isElement(container)) throw new TypeError("Expected string or element selector to be passed");
                                return container;
                            }
                            if (context === CONTEXT.POPUP) return "body";
                            throw new Error("Expected element to be passed to render iframe");
                        }(finalContext, container);
                        if (target !== window && "string" != typeof container) throw new Error("Must pass string element when rendering to another window");
                        return parent.render({
                            target: target,
                            container: container,
                            context: finalContext,
                            rerender: function() {
                                var newInstance = clone();
                                extend(instance, newInstance);
                                return newInstance.renderTo(target, container, context);
                            }
                        });
                    })).catch((function(err) {
                        return parent.destroy(err).then((function() {
                            throw err;
                        }));
                    }));
                };
                instance = _extends({}, parent.getExports(), parent.getHelpers(), function() {
                    var childComponents = children();
                    var result = {};
                    var _loop2 = function(_i4, _Object$keys4) {
                        var childName = _Object$keys4[_i4];
                        var Child = childComponents[childName];
                        result[childName] = function(childInputProps) {
                            var parentProps = parent.getProps();
                            var childProps = _extends({}, childInputProps, {
                                parent: {
                                    uid: uid,
                                    props: parentProps,
                                    export: parent.export
                                }
                            });
                            return Child(childProps);
                        };
                    };
                    for (var _i4 = 0, _Object$keys4 = Object.keys(childComponents); _i4 < _Object$keys4.length; _i4++) _loop2(_i4, _Object$keys4);
                    return result;
                }(), {
                    isEligible: function() {
                        return eligibility;
                    },
                    clone: clone,
                    render: function(container, context) {
                        return _render(window, container, context);
                    },
                    renderTo: function(target, container, context) {
                        return _render(target, container, context);
                    }
                });
                eligibility && instances.push(instance);
                return instance;
            };
            registerChild();
            !function() {
                var allowDelegateListener = on_on("zoid_allow_delegate_" + name, (function() {
                    return !0;
                }));
                var delegateListener = on_on("zoid_delegate_" + name, (function(_ref2) {
                    var _ref2$data = _ref2.data;
                    return {
                        parent: parentComponent({
                            uid: _ref2$data.uid,
                            options: options,
                            overrides: _ref2$data.overrides,
                            parentWin: _ref2.source
                        })
                    };
                }));
                cleanZoid.register(allowDelegateListener.cancel);
                cleanZoid.register(delegateListener.cancel);
            }();
            global.components = global.components || {};
            if (global.components[tag]) throw new Error("Can not register multiple components with the same tag: " + tag);
            global.components[tag] = !0;
            return {
                init: init,
                instances: instances,
                driver: function(driverName, dep) {
                    var drivers = {
                        react: react,
                        angular: angular,
                        vue: vue,
                        vue3: vue3,
                        angular2: angular2
                    };
                    if (!drivers[driverName]) throw new Error("Could not find driver for framework: " + driverName);
                    driverCache[driverName] || (driverCache[driverName] = drivers[driverName].register(tag, propsDef, init, dep));
                    return driverCache[driverName];
                },
                isChild: isChild,
                canRenderTo: function(win) {
                    return send_send(win, "zoid_allow_delegate_" + name).then((function(_ref3) {
                        return _ref3.data;
                    })).catch((function() {
                        return !1;
                    }));
                },
                registerChild: registerChild
            };
        }
        var component_create = function(options) {
            !function() {
                if (!global_getGlobal().initialized) {
                    global_getGlobal().initialized = !0;
                    on = (_ref3 = {
                        on: on_on,
                        send: send_send
                    }).on, send = _ref3.send, (global = global_getGlobal()).receiveMessage = global.receiveMessage || function(message) {
                        return receive_receiveMessage(message, {
                            on: on,
                            send: send
                        });
                    };
                    !function(_ref5) {
                        var on = _ref5.on, send = _ref5.send;
                        globalStore().getOrSet("postMessageListener", (function() {
                            return addEventListener(window, "message", (function(event) {
                                !function(event, _ref4) {
                                    var on = _ref4.on, send = _ref4.send;
                                    promise_ZalgoPromise.try((function() {
                                        var source = event.source || event.sourceElement;
                                        var origin = event.origin || event.originalEvent && event.originalEvent.origin;
                                        var data = event.data;
                                        "null" === origin && (origin = "file://");
                                        if (source) {
                                            if (!origin) throw new Error("Post message did not have origin domain");
                                            receive_receiveMessage({
                                                source: source,
                                                origin: origin,
                                                data: data
                                            }, {
                                                on: on,
                                                send: send
                                            });
                                        }
                                    }));
                                }(event, {
                                    on: on,
                                    send: send
                                });
                            }));
                        }));
                    }({
                        on: on_on,
                        send: send_send
                    });
                    setupBridge({
                        on: on_on,
                        send: send_send,
                        receiveMessage: receive_receiveMessage
                    });
                    !function(_ref8) {
                        var on = _ref8.on, send = _ref8.send;
                        globalStore("builtinListeners").getOrSet("helloListener", (function() {
                            var listener = on("postrobot_hello", {
                                domain: "*"
                            }, (function(_ref3) {
                                resolveHelloPromise(_ref3.source, {
                                    domain: _ref3.origin
                                });
                                return {
                                    instanceID: getInstanceID()
                                };
                            }));
                            var parent = getAncestor();
                            parent && sayHello(parent, {
                                send: send
                            }).catch((function(err) {}));
                            return listener;
                        }));
                    }({
                        on: on_on,
                        send: send_send
                    });
                }
                var _ref3, on, send, global;
            }();
            var comp = component(options);
            var init = function(props) {
                return comp.init(props);
            };
            init.driver = function(name, dep) {
                return comp.driver(name, dep);
            };
            init.isChild = function() {
                return comp.isChild();
            };
            init.canRenderTo = function(win) {
                return comp.canRenderTo(win);
            };
            init.instances = comp.instances;
            var child = comp.registerChild();
            child && (window.xprops = init.xprops = child.getProps());
            return init;
        };
        function destroyComponents(err) {
            src_bridge && src_bridge.destroyBridges();
            var destroyPromise = cleanInstances.all(err);
            cleanInstances = cleanup();
            return destroyPromise;
        }
        var destroyAll = destroyComponents;
        function component_destroy(err) {
            destroyAll();
            delete window.__zoid_9_0_86__;
            !function() {
                !function() {
                    var responseListeners = globalStore("responseListeners");
                    for (var _i2 = 0, _responseListeners$ke2 = responseListeners.keys(); _i2 < _responseListeners$ke2.length; _i2++) {
                        var hash = _responseListeners$ke2[_i2];
                        var listener = responseListeners.get(hash);
                        listener && (listener.cancelled = !0);
                        responseListeners.del(hash);
                    }
                }();
                (listener = globalStore().get("postMessageListener")) && listener.cancel();
                var listener;
                delete window.__post_robot_10_0_44__;
            }();
            return cleanZoid.all(err);
        }
    } ]);
}));
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__("b639").Buffer))

/***/ }),

/***/ "bc3e":
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "overlay", function() { return overlay; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "attachTo", function() { return attachTo; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "attachAll", function() { return attachAll; });
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "remove", function() { return remove; });
/* harmony import */ var _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__("92ce");
/* harmony import */ var _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var _assets_overlay_css__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__("3323");
/* harmony import */ var _assets_overlay_css__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(_assets_overlay_css__WEBPACK_IMPORTED_MODULE_1__);
function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }



function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }


var OVERLAY_INSTANCE = 0;
/**** USAGE ***

  // JS
  Dokbot.RuntimeComponent.overlay.defaults = { preload: true, explosionColor: '#293652' }

  Dokbot.RuntimeComponent.overlay({ workflowId: 'WsqpBav07', params: { name: 'foo' } }).attachTo('#button1', '#button2')
  Dokbot.RuntimeComponent.overlay({ workflowId: 'WsqpBav07' }, { preload: false, explosionColor: 'green ' }).attachTo('#button1', element)
  Dokbot.RuntimeComponent.overlay({ consultationId: 'WsqpBav07' }).attachTo('#button1', element)

  const launcher = Dokbot.RuntimeComponent.overlay({ workflowId: 'WsqpBav07' }, { preload: false, explosionColor: 'green ' })

  element.onClick = event => launch(event)

  // Take configuration from Markup
  Dokbot.RuntimeComponent.attachTo('#button3', element)
  Dokbot.RuntimeComponent.attachAll('button')

  // Markup
  <button id="button3" data-dokbot-consultation="WsqpBav07">Click Me</button>
  <button data-dokbot-workflow="WsqpBav07" data-dokbot-explosion-color="purple">Click Me</button>
  <button id="button3" data-dokbot-workflow="WsqpBav07" data-dokbot-params='{ "name": "Yohan" }'>Click Me</button>

 **************/

function overlay(dokbotConfig, overlayConfig) {
  if (Dokbot.meta.verbose) {
    // eslint-disable-next-line
    console.info('[DOKBOT] Preparing', JSON.stringify(dokbotConfig));
  }

  overlayConfig = _objectSpread(_objectSpread({}, overlay.defaults), overlayConfig);
  var dokbotReadyPromise;

  if (overlayConfig.preload) {
    // Ensure we reinitialize on close
    var _onClose = dokbotConfig.onClose;
    dokbotConfig = _objectSpread(_objectSpread({}, dokbotConfig), {}, {
      onClose: function onClose() {
        if (Dokbot.meta.verbose) {
          // eslint-disable-next-line
          console.info('[DOKBOT] Repreparing', JSON.stringify(dokbotConfig));
        }

        dokbotReadyPromise = loadDokbotInstance(dokbotConfig);

        if (_onClose) {
          _onClose();
        }
      }
    });
    dokbotReadyPromise = loadDokbotInstance(dokbotConfig);
  }

  var launcher = /*#__PURE__*/function () {
    var _ref = _asyncToGenerator( /*#__PURE__*/_builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.mark(function _callee(e, explosionColor) {
      var exploder, _yield$dokbotReadyPro, dokbot, overlay, runtime;

      return _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              if (e) {
                e.preventDefault();
              }

              exploder = explode(e && e.target, explosionColor || overlayConfig.explosionColor);

              if (!overlayConfig.preload) {
                dokbotReadyPromise = loadDokbotInstance(dokbotConfig);
              }

              if (dokbotConfig.immediate) {
                _context.next = 6;
                break;
              }

              _context.next = 6;
              return delay(750);

            case 6:
              _context.next = 8;
              return dokbotReadyPromise;

            case 8:
              _yield$dokbotReadyPro = _context.sent;
              dokbot = _yield$dokbotReadyPro.dokbot;
              overlay = _yield$dokbotReadyPro.overlay;
              runtime = _yield$dokbotReadyPro.runtime;

              if (dokbotConfig.closeable !== false) {
                overlay.addEventListener('click', function () {
                  // This will trigger onClose handlers
                  runtime.close();
                });
              }

              dokbot.classList.add('ready');

              if (dokbotConfig.immediate) {
                _context.next = 17;
                break;
              }

              _context.next = 17;
              return delay(1500);

            case 17:
              Object.keys(runtime.style).forEach(function (k) {
                overlay.style.setProperty(k, runtime.style[k]);
              });
              document.body.append(overlay);
              exploder.remove();
              runtime.start();
              return _context.abrupt("return", runtime);

            case 22:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }));

    return function launcher(_x, _x2) {
      return _ref.apply(this, arguments);
    };
  }();

  launcher.attachTo = function () {
    var resolved = [];

    for (var _len = arguments.length, elements = new Array(_len), _key = 0; _key < _len; _key++) {
      elements[_key] = arguments[_key];
    }

    elements.forEach(function (el) {
      if (typeof el === 'string') {
        el = document.querySelectorAll(el);
      }

      if (!el) {
        return;
      }

      if (el instanceof Array || el instanceof NodeList) {
        resolved.push.apply(resolved, _toConsumableArray(el));
      } else {
        resolved.push(el);
      }
    });
    resolved.forEach(function (el) {
      if (typeof el === 'string') {
        el = document.querySelectorAll(el);
      }

      if (!el) {
        return null;
      }

      var explosionColor = overlayConfig.explosionColor || window.getComputedStyle(el).backgroundColor;
      el.addEventListener('click', function (event) {
        return launcher(event, explosionColor);
      });
    });
  };

  return launcher;
} // Attach to the specified elements, taking configuration only from data properties

function attachTo() {
  for (var _len2 = arguments.length, elements = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
    elements[_key2] = arguments[_key2];
  }

  elements.forEach(function (el) {
    if (typeof el === 'string') {
      el = document.querySelector(el);
    }

    var data = el.dataset;
    var dokbotConfig = {
      workflowId: data.dokbotWorkflow,
      consultationId: data.dokbotConsultation,
      params: data.dokbotParams
    };
    var overlayConfig = {
      preload: data.dokbotPreload === '' || data.dokbotPreload === 'true' || data.dokbotPreload === 'yes',
      explosionColor: data.dokbotExplosionColor || window.getComputedStyle(el).backgroundColor,
      stageBackground: data.dokbotStageBackground
    };

    if (dokbotConfig.params) {
      try {
        dokbotConfig.params = JSON.parse(dokbotConfig.params);
      } catch (e) {
        // eslint-disable-next-line
        console.error('[DOKBOT] Cannot parse expected JSON params:', dokbotConfig.params, e);
        dokbotConfig.params = {};
      }
    }

    Dokbot.RuntimeComponent.overlay(dokbotConfig, overlayConfig).attachTo(el);
  });
}
function attachAll() {
  var resolvedElements = [];

  for (var _len3 = arguments.length, elements = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
    elements[_key3] = arguments[_key3];
  }

  elements.forEach(function (els) {
    if (typeof els === 'string') {
      els = document.querySelectorAll(els);
    }

    if (els instanceof Array) {
      resolvedElements.push.apply(resolvedElements, _toConsumableArray(els));
    } else {
      resolvedElements.push(els);
    }
  });
  return attachTo.apply(void 0, resolvedElements);
}

function buildElement(tag, id) {
  var _el$classList;

  var classes = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [];
  var children = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : [];
  var el = document.createElement(tag);

  (_el$classList = el.classList).add.apply(_el$classList, _toConsumableArray(classes));

  children.forEach(function (c) {
    return el.append(c);
  });

  if (id) {
    el.id = id;
  }

  return el;
}

function findOrBuildElement(tag, id, classes, children) {
  return document.querySelector("#".concat(id)) || buildElement(tag, id, classes, children);
}

function remove() {
  var dokbotOverlay = document.querySelector('.dokbot-bootstrap-overlay');
  var dokbotContainer = document.querySelector('.dokbot-bootstrap-container');
  if (dokbotOverlay) dokbotOverlay.remove();
  if (dokbotContainer) dokbotContainer.remove();
}

function loadDokbotInstance(config) {
  var uid = "dokbot-" + OVERLAY_INSTANCE++;
  var isClosed = false;
  var classes = [];

  if (config.immediate) {
    classes.push('dokbot-immediate');
  }

  if (config.closeable !== false) {
    classes.push('closeable');
  }

  var dokbot = findOrBuildElement('div', uid, ['dokbot-bootstrap-container'].concat(classes));
  var overlay = findOrBuildElement('div', "".concat(uid, "-bootstrap-overlay"), ['dokbot-bootstrap-overlay'].concat(classes));
  document.body.append(dokbot);

  var close = function close() {
    if (!isClosed) {
      dokbot.remove();
      overlay.remove();
      isClosed = true;
    }
  };

  return new Promise(function (resolve) {
    Dokbot.RuntimeComponent(_objectSpread(_objectSpread(_objectSpread({
      closeable: true,
      closeOnExit: true
    }, window.DOKBOT_CONFIG), config), {}, {
      autostart: false,
      onReady: function onReady(consultation, style, start) {
        return resolve({
          dokbot: dokbot,
          overlay: overlay,
          runtime: {
            consultation: consultation,
            style: style,
            start: start,
            close: close
          }
        });
      },
      onClose: function onClose() {
        close();

        if (config.onClose) {
          config.onClose();
        }
      }
    })).render(dokbot);
  });
}

function delay() {
  var ms = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 1000;
  return new Promise(function (resolve) {
    return setTimeout(resolve, ms);
  });
}

function explode(el, color) {
  var pos = {
    top: window.innerHeight / 2,
    left: window.innerWidth / 2
  };
  var children = [];

  if (el) {
    var clone = el.cloneNode(true);
    pos = el.getBoundingClientRect(); // This ensures that cascaded CSS styles are duplicated to the clone

    applyElementStyles(el, clone);
    children.push(clone);
  }

  var exploder = buildElement('div', undefined, ['dokbot-bootstrap-exploder'], children);
  exploder.style.top = pos.top + 'px';
  exploder.style.left = pos.left + 'px';
  exploder.style.setProperty('--dokbot-explosion-color', color);
  document.body.append(exploder);
  return exploder;
}

function applyElementStyles(source, target) {
  var apply = function apply(s, d) {
    return d.style.cssText = document.defaultView.getComputedStyle(s, '').cssText;
  };

  apply(source, target);
  var sourceElements = source.getElementsByTagName('*');
  var targetElements = target.getElementsByTagName('*');

  for (var i = 0; i < sourceElements.length; i++) {
    apply(sourceElements[i], targetElements[i]);
  }
}

/***/ }),

/***/ "c8ba":
/***/ (function(module, exports) {

var g;

// This works in non-strict mode
g = (function() {
	return this;
})();

try {
	// This works if eval is allowed (see CSP)
	g = g || new Function("return this")();
} catch (e) {
	// This works if the window reference is available
	if (typeof window === "object") g = window;
}

// g can still be undefined, but nothing to do about it...
// We return undefined, instead of nothing here, so it's
// easier to handle this case. if(!global) { ...}

module.exports = g;


/***/ }),

/***/ "e162":
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(global) {/* harmony import */ var _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__("92ce");
/* harmony import */ var _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default = /*#__PURE__*/__webpack_require__.n(_builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0__);
/* harmony import */ var loadjs__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__("83a7");
/* harmony import */ var loadjs__WEBPACK_IMPORTED_MODULE_1___default = /*#__PURE__*/__webpack_require__.n(loadjs__WEBPACK_IMPORTED_MODULE_1__);
function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }



function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }


var GLOBAL = typeof window !== 'undefined' ? window : global;
var CACHE = GLOBAL.DokbotKits = GLOBAL.DokbotKits || {};
/* harmony default export */ __webpack_exports__["a"] = ({
  load: function load(url) {
    return _asyncToGenerator( /*#__PURE__*/_builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.mark(function _callee() {
      return _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              return _context.abrupt("return", new Promise(function (success, error) {
                return loadjs__WEBPACK_IMPORTED_MODULE_1___default()(url, {
                  success: success,
                  error: error
                });
              }));

            case 1:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }))();
  },
  resolve: function resolve(kitref) {
    var _this = this;

    return _asyncToGenerator( /*#__PURE__*/_builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.mark(function _callee2() {
      return _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.wrap(function _callee2$(_context2) {
        while (1) {
          switch (_context2.prev = _context2.next) {
            case 0:
              if (!CACHE[kitref.id]) {
                _context2.next = 2;
                break;
              }

              return _context2.abrupt("return", CACHE[kitref.id]);

            case 2:
              _context2.next = 4;
              return _this.load(kitref.url);

            case 4:
              if (CACHE[kitref.id]) {
                _context2.next = 6;
                break;
              }

              throw new Error("Failed to resolve kit ".concat(kitref.id, " using ").concat(kitref.url));

            case 6:
              return _context2.abrupt("return", CACHE[kitref.id]);

            case 7:
            case "end":
              return _context2.stop();
          }
        }
      }, _callee2);
    }))();
  },
  resolveAll: function resolveAll() {
    var _arguments = arguments,
        _this2 = this;

    return _asyncToGenerator( /*#__PURE__*/_builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.mark(function _callee3() {
      var kitrefs, kits, _iterator, _step, kr;

      return _builds_dokbot_main_config_node_modules_babel_runtime_regenerator_index_js__WEBPACK_IMPORTED_MODULE_0___default.a.wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              kitrefs = _arguments.length > 0 && _arguments[0] !== undefined ? _arguments[0] : [];
              kits = [];
              _iterator = _createForOfIteratorHelper(kitrefs);
              _context3.prev = 3;

              _iterator.s();

            case 5:
              if ((_step = _iterator.n()).done) {
                _context3.next = 14;
                break;
              }

              kr = _step.value;
              _context3.t0 = kits;
              _context3.next = 10;
              return _this2.resolve(kr);

            case 10:
              _context3.t1 = _context3.sent;

              _context3.t0.push.call(_context3.t0, _context3.t1);

            case 12:
              _context3.next = 5;
              break;

            case 14:
              _context3.next = 19;
              break;

            case 16:
              _context3.prev = 16;
              _context3.t2 = _context3["catch"](3);

              _iterator.e(_context3.t2);

            case 19:
              _context3.prev = 19;

              _iterator.f();

              return _context3.finish(19);

            case 22:
              return _context3.abrupt("return", kits);

            case 23:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3, null, [[3, 16, 19, 22]]);
    }))();
  }
});
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__("c8ba")))

/***/ }),

/***/ "e3db":
/***/ (function(module, exports) {

var toString = {}.toString;

module.exports = Array.isArray || function (arr) {
  return toString.call(arr) == '[object Array]';
};


/***/ }),

/***/ "f6fd":
/***/ (function(module, exports) {

// document.currentScript polyfill by Adam Miller

// MIT license

(function(document){
  var currentScript = "currentScript",
      scripts = document.getElementsByTagName('script'); // Live NodeList collection

  // If browser needs currentScript polyfill, add get currentScript() to the document object
  if (!(currentScript in document)) {
    Object.defineProperty(document, currentScript, {
      get: function(){

        // IE 6-10 supports script readyState
        // IE 10+ support stack trace
        try { throw new Error(); }
        catch (err) {

          // Find the second match for the "at" string to get file src url from stack.
          // Specifically works with the format of stack traces in IE.
          var i, res = ((/.*at [^\(]*\((.*):.+:.+\)$/ig).exec(err.stack) || [false])[1];

          // For all scripts on the page, if src matches or if ready state is interactive, return the script tag
          for(i in scripts){
            if(scripts[i].src == res || scripts[i].readyState == "interactive"){
              return scripts[i];
            }
          }

          // If no match, return null
          return null;
        }
      }
    });
  }
})(document);


/***/ }),

/***/ "f7fe":
/***/ (function(module, exports, __webpack_require__) {

/* WEBPACK VAR INJECTION */(function(global) {/**
 * lodash (Custom Build) <https://lodash.com/>
 * Build: `lodash modularize exports="npm" -o ./`
 * Copyright jQuery Foundation and other contributors <https://jquery.org/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */

/** Used as the `TypeError` message for "Functions" methods. */
var FUNC_ERROR_TEXT = 'Expected a function';

/** Used as references for various `Number` constants. */
var NAN = 0 / 0;

/** `Object#toString` result references. */
var symbolTag = '[object Symbol]';

/** Used to match leading and trailing whitespace. */
var reTrim = /^\s+|\s+$/g;

/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

/** Used to detect binary string values. */
var reIsBinary = /^0b[01]+$/i;

/** Used to detect octal string values. */
var reIsOctal = /^0o[0-7]+$/i;

/** Built-in method references without a dependency on `root`. */
var freeParseInt = parseInt;

/** Detect free variable `global` from Node.js. */
var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;

/** Detect free variable `self`. */
var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

/** Used as a reference to the global object. */
var root = freeGlobal || freeSelf || Function('return this')();

/** Used for built-in method references. */
var objectProto = Object.prototype;

/**
 * Used to resolve the
 * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
 * of values.
 */
var objectToString = objectProto.toString;

/* Built-in method references for those with the same name as other `lodash` methods. */
var nativeMax = Math.max,
    nativeMin = Math.min;

/**
 * Gets the timestamp of the number of milliseconds that have elapsed since
 * the Unix epoch (1 January 1970 00:00:00 UTC).
 *
 * @static
 * @memberOf _
 * @since 2.4.0
 * @category Date
 * @returns {number} Returns the timestamp.
 * @example
 *
 * _.defer(function(stamp) {
 *   console.log(_.now() - stamp);
 * }, _.now());
 * // => Logs the number of milliseconds it took for the deferred invocation.
 */
var now = function() {
  return root.Date.now();
};

/**
 * Creates a debounced function that delays invoking `func` until after `wait`
 * milliseconds have elapsed since the last time the debounced function was
 * invoked. The debounced function comes with a `cancel` method to cancel
 * delayed `func` invocations and a `flush` method to immediately invoke them.
 * Provide `options` to indicate whether `func` should be invoked on the
 * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
 * with the last arguments provided to the debounced function. Subsequent
 * calls to the debounced function return the result of the last `func`
 * invocation.
 *
 * **Note:** If `leading` and `trailing` options are `true`, `func` is
 * invoked on the trailing edge of the timeout only if the debounced function
 * is invoked more than once during the `wait` timeout.
 *
 * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
 * until to the next tick, similar to `setTimeout` with a timeout of `0`.
 *
 * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
 * for details over the differences between `_.debounce` and `_.throttle`.
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Function
 * @param {Function} func The function to debounce.
 * @param {number} [wait=0] The number of milliseconds to delay.
 * @param {Object} [options={}] The options object.
 * @param {boolean} [options.leading=false]
 *  Specify invoking on the leading edge of the timeout.
 * @param {number} [options.maxWait]
 *  The maximum time `func` is allowed to be delayed before it's invoked.
 * @param {boolean} [options.trailing=true]
 *  Specify invoking on the trailing edge of the timeout.
 * @returns {Function} Returns the new debounced function.
 * @example
 *
 * // Avoid costly calculations while the window size is in flux.
 * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
 *
 * // Invoke `sendMail` when clicked, debouncing subsequent calls.
 * jQuery(element).on('click', _.debounce(sendMail, 300, {
 *   'leading': true,
 *   'trailing': false
 * }));
 *
 * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
 * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
 * var source = new EventSource('/stream');
 * jQuery(source).on('message', debounced);
 *
 * // Cancel the trailing debounced invocation.
 * jQuery(window).on('popstate', debounced.cancel);
 */
function debounce(func, wait, options) {
  var lastArgs,
      lastThis,
      maxWait,
      result,
      timerId,
      lastCallTime,
      lastInvokeTime = 0,
      leading = false,
      maxing = false,
      trailing = true;

  if (typeof func != 'function') {
    throw new TypeError(FUNC_ERROR_TEXT);
  }
  wait = toNumber(wait) || 0;
  if (isObject(options)) {
    leading = !!options.leading;
    maxing = 'maxWait' in options;
    maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
    trailing = 'trailing' in options ? !!options.trailing : trailing;
  }

  function invokeFunc(time) {
    var args = lastArgs,
        thisArg = lastThis;

    lastArgs = lastThis = undefined;
    lastInvokeTime = time;
    result = func.apply(thisArg, args);
    return result;
  }

  function leadingEdge(time) {
    // Reset any `maxWait` timer.
    lastInvokeTime = time;
    // Start the timer for the trailing edge.
    timerId = setTimeout(timerExpired, wait);
    // Invoke the leading edge.
    return leading ? invokeFunc(time) : result;
  }

  function remainingWait(time) {
    var timeSinceLastCall = time - lastCallTime,
        timeSinceLastInvoke = time - lastInvokeTime,
        result = wait - timeSinceLastCall;

    return maxing ? nativeMin(result, maxWait - timeSinceLastInvoke) : result;
  }

  function shouldInvoke(time) {
    var timeSinceLastCall = time - lastCallTime,
        timeSinceLastInvoke = time - lastInvokeTime;

    // Either this is the first call, activity has stopped and we're at the
    // trailing edge, the system time has gone backwards and we're treating
    // it as the trailing edge, or we've hit the `maxWait` limit.
    return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
      (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
  }

  function timerExpired() {
    var time = now();
    if (shouldInvoke(time)) {
      return trailingEdge(time);
    }
    // Restart the timer.
    timerId = setTimeout(timerExpired, remainingWait(time));
  }

  function trailingEdge(time) {
    timerId = undefined;

    // Only invoke if we have `lastArgs` which means `func` has been
    // debounced at least once.
    if (trailing && lastArgs) {
      return invokeFunc(time);
    }
    lastArgs = lastThis = undefined;
    return result;
  }

  function cancel() {
    if (timerId !== undefined) {
      clearTimeout(timerId);
    }
    lastInvokeTime = 0;
    lastArgs = lastCallTime = lastThis = timerId = undefined;
  }

  function flush() {
    return timerId === undefined ? result : trailingEdge(now());
  }

  function debounced() {
    var time = now(),
        isInvoking = shouldInvoke(time);

    lastArgs = arguments;
    lastThis = this;
    lastCallTime = time;

    if (isInvoking) {
      if (timerId === undefined) {
        return leadingEdge(lastCallTime);
      }
      if (maxing) {
        // Handle invocations in a tight loop.
        timerId = setTimeout(timerExpired, wait);
        return invokeFunc(lastCallTime);
      }
    }
    if (timerId === undefined) {
      timerId = setTimeout(timerExpired, wait);
    }
    return result;
  }
  debounced.cancel = cancel;
  debounced.flush = flush;
  return debounced;
}

/**
 * Checks if `value` is the
 * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
 * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @since 0.1.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(_.noop);
 * // => true
 *
 * _.isObject(null);
 * // => false
 */
function isObject(value) {
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Checks if `value` is object-like. A value is object-like if it's not `null`
 * and has a `typeof` result of "object".
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 * @example
 *
 * _.isObjectLike({});
 * // => true
 *
 * _.isObjectLike([1, 2, 3]);
 * // => true
 *
 * _.isObjectLike(_.noop);
 * // => false
 *
 * _.isObjectLike(null);
 * // => false
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/**
 * Checks if `value` is classified as a `Symbol` primitive or object.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
 * @example
 *
 * _.isSymbol(Symbol.iterator);
 * // => true
 *
 * _.isSymbol('abc');
 * // => false
 */
function isSymbol(value) {
  return typeof value == 'symbol' ||
    (isObjectLike(value) && objectToString.call(value) == symbolTag);
}

/**
 * Converts `value` to a number.
 *
 * @static
 * @memberOf _
 * @since 4.0.0
 * @category Lang
 * @param {*} value The value to process.
 * @returns {number} Returns the number.
 * @example
 *
 * _.toNumber(3.2);
 * // => 3.2
 *
 * _.toNumber(Number.MIN_VALUE);
 * // => 5e-324
 *
 * _.toNumber(Infinity);
 * // => Infinity
 *
 * _.toNumber('3.2');
 * // => 3.2
 */
function toNumber(value) {
  if (typeof value == 'number') {
    return value;
  }
  if (isSymbol(value)) {
    return NAN;
  }
  if (isObject(value)) {
    var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
    value = isObject(other) ? (other + '') : other;
  }
  if (typeof value != 'string') {
    return value === 0 ? value : +value;
  }
  value = value.replace(reTrim, '');
  var isBinary = reIsBinary.test(value);
  return (isBinary || reIsOctal.test(value))
    ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
    : (reIsBadHex.test(value) ? NAN : +value);
}

module.exports = debounce;

/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__("c8ba")))

/***/ }),

/***/ "fb15":
/***/ (function(module, __webpack_exports__, __webpack_require__) {

"use strict";
// ESM COMPAT FLAG
__webpack_require__.r(__webpack_exports__);

// CONCATENATED MODULE: ./node_modules/@vue/cli-service/lib/commands/build/setPublicPath.js
// This file is imported into lib/wc client bundles.

if (typeof window !== 'undefined') {
  if (true) {
    __webpack_require__("f6fd")
  }

  var i
  if ((i = window.document.currentScript) && (i = i.src.match(/(.+\/)[^/]+\.js(\?.*)?$/))) {
    __webpack_require__.p = i[1] // eslint-disable-line
  }
}

// Indicate to webpack that this file can be concatenated
/* harmony default export */ var setPublicPath = (null);

// CONCATENATED MODULE: ./src/component.js
var RuntimeComponent = null;

function resolveUrl(value) {
  if (value.match(/^http(s)*:\/\//i)) {
    return value;
  }

  if (value.startsWith('/')) {
    return window.location.href.replace(/^(.+?:\/\/[^/]+)(\/.*)/g, '$1') + value;
  }

  return window.location.href.replace(/[^/]+$/, '') + value;
}

if (typeof window !== 'undefined') {
  // eslint-disable-next-line
  var zoid = __webpack_require__("b997"); // eslint-disable-next-line


  var dom = __webpack_require__("bc3e");

  var CONTENT_FEATURES = ['camera', 'microphone', 'speaker', 'geolocation', 'fullscreen', 'autoplay'];
  RuntimeComponent = zoid.create({
    tag: 'dokbot-runtime',
    url: function url(_ref) {
      var props = _ref.props;

      if (props.staticRuntimeUrl) {
        return props.staticRuntimeUrl;
      }

      return "https://runtime.dokbot.io";
    },
    defaultEnv: 'production',
    dimensions: {
      width: '100%',
      height: '100%'
    },
    attributes: {
      iframe: {
        allowfullscreen: true,
        // This is designed to produce a feature policy string that works on both modern Chrome (with origins) and
        // on older browsers that don't support the origin argument. This was delicate to make happen and may
        // break in the future or break if you change the order of the policies.
        allow: CONTENT_FEATURES.map(function (f) {
          return "".concat(f, " *; ").concat(f);
        }).join('; ')
      }
    },
    props: {
      staticRuntimeUrl: {
        type: 'string',
        required: false,
        decorate: function decorate(_ref2) {
          var value = _ref2.value;
          return resolveUrl(value);
        }
      },
      staticResourceUrl: {
        type: 'string',
        required: false,
        decorate: function decorate(_ref3) {
          var value = _ref3.value;
          return resolveUrl(value);
        }
      },
      consultationId: {
        type: 'string',
        required: false
      },
      consultation: {
        type: 'object',
        serialization: 'json',
        required: false
      },
      workflowId: {
        type: 'string',
        required: false
      },
      workflow: {
        type: 'object',
        serialization: 'json',
        required: false
      },
      params: {
        type: 'object',
        serialization: 'json',
        required: false
      },
      activationCode: {
        type: 'string',
        required: false
      },
      autostart: {
        type: 'boolean',
        required: false
      },
      attribution: {
        type: 'boolean',
        required: false
      },
      immediate: {
        type: 'boolean',
        required: false
      },
      closeable: {
        type: 'boolean',
        required: false
      },
      closeOnExit: {
        type: 'boolean',
        required: false
      },
      // TODO: Replace these with a unified onHook callback
      onReady: {
        type: 'function',
        required: false
      },
      onStart: {
        type: 'function',
        required: false
      },
      onCompletion: {
        type: 'function',
        required: false
      },
      onStateChange: {
        type: 'function',
        required: false
      },
      onEvent: {
        type: 'function',
        required: false
      },
      onError: {
        type: 'function',
        required: false
      },
      onRedirect: {
        type: 'function',
        required: false,
        default: function _default() {
          return function (url) {
            window.location.href = url;
          };
        }
      },
      meta: {
        type: 'object',
        serialization: 'json',
        required: false,
        default: function _default() {
          return {
            hostUrl: window.location.href,
            hostReferrer: document.referrer // TODO: Inject here information on what triggered the dokbot?

          };
        }
      },
      scrollFix: {
        type: 'function',
        required: false,
        default: function _default() {
          return function () {
            // HM 2019-11-18:
            // This fixes a very specific problem on some iOS ui webviews (particularly FB browser),
            // where once the keyboard closes, the viewport is kind of in a half-broken scroll state,
            // not only in the iframe but in the parent frame. This particularly happens under
            // flexbox elements with fixed position parents.
            // FIXME: This resets the page scroll offset when Dokbot is embedded in a longer page. We should
            // capture the offset on load so that we can return to it instead of 0,0.
            window.scrollTo(document.body.scrollLeft, document.body.scrollTop);
          };
        }
      }
    },
    // Disable the loading spinner
    prerenderTemplate: function containerTemplate(_ref4) {
      var doc = _ref4.doc;
      return doc.createElement('html');
    }
  });
  RuntimeComponent.overlay = dom.overlay;
  RuntimeComponent.attachTo = dom.attachTo;
  RuntimeComponent.attachAll = dom.AttachAll;
  RuntimeComponent.remove = dom.remove;
}

/* harmony default export */ var component = (RuntimeComponent);
// EXTERNAL MODULE: ./src/kit-cache.js
var kit_cache = __webpack_require__("e162");

// CONCATENATED MODULE: ./src/models/step.js
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

var Step = /*#__PURE__*/function () {
  function Step(record) {
    _classCallCheck(this, Step);

    Object.assign(this, record); // TODO: remove
    // this.consultation = consultation

    this.state = {}; // Workaround for https://github.com/strapi/strapi/issues/902

    this.options = this.options || {};
    this.sectionId = this.sectionId || null;
  } // TODO: move to dokbot-runtime
  // get isFirstStep() {
  //   return this.consultation.steps[0].id === this.id
  // }


  _createClass(Step, [{
    key: "toJSON",
    value: function toJSON() {
      // return { ...this, consultation: this.consultation && this.consultation.id }
      return _objectSpread({}, this);
    }
  }, {
    key: "toRef",
    value: function toRef() {
      return {
        _typeRef: 'step',
        id: this.id
      };
    }
  }]);

  return Step;
}();


// CONCATENATED MODULE: ./src/models/workflow.js
function workflow_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function workflow_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function workflow_createClass(Constructor, protoProps, staticProps) { if (protoProps) workflow_defineProperties(Constructor.prototype, protoProps); if (staticProps) workflow_defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }

function _typeof(obj) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, _typeof(obj); }


var PrimitiveParamTypes = ['string', 'number', 'boolean', 'date', 'object', 'any'];
var PARAM_SPEC = {
  type: 'string',
  default: undefined,
  required: false
};

function coerceType(value, type) {
  if (value === undefined) {
    return value;
  }

  switch (type) {
    case 'string':
      return '' + value;

    case 'numeric':
      return value * 1;

    case 'boolean':
      // Falsey: undefined, null, '', false, "false", "FALSE", 0, "0"
      // Truthy: everything else, including some uncommon edge cases like "00"
      return !!value && ('' + value).toLowerCase() !== 'false' && value !== '0';

    case 'datetime':
      return new Date(value);

    case 'object':
      if (_typeof(value) === 'object') {
        return value;
      }

      try {
        return JSON.parse(value);
      } catch (err) {
        // eslint-disable-next-line
        console.error(err);
        return null;
      }

    default:
      return value;
  }
}

var workflow_Workflow = /*#__PURE__*/function () {
  function Workflow(record) {
    var _this = this;

    workflow_classCallCheck(this, Workflow);

    Object.assign(this, record); // Workaround for https://github.com/strapi/strapi/issues/902

    this.handlers = this.handlers || [];
    this.sections = this.sections || []; // Ensure params are fully qualified

    this.params.forEach(function (param, i) {
      if (_typeof(param) === 'object') {
        _this.params[i] = Object.assign({}, PARAM_SPEC, param);
      } else {
        _this.params[i] = Object.assign({}, PARAM_SPEC, {
          type: param || 'any'
        });
      }
    });
    this.steps = this.steps.map(function (s) {
      return new Step(s);
    });
  }

  workflow_createClass(Workflow, [{
    key: "applyParams",
    value: function applyParams() {
      var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var result = {}; // Param pass ensuring aggregation with defaults

      this.params.forEach(function (wfparam) {
        result[wfparam.key] = coerceType(params[wfparam.key] || wfparam.default, wfparam.type);
      });
      return result;
    }
  }, {
    key: "toRef",
    value: function toRef() {
      return {
        _typeRef: 'workflow',
        id: this.id
      };
    }
  }]);

  return Workflow;
}();


// CONCATENATED MODULE: ./src/models/consultation.js
function consultation_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function consultation_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function consultation_createClass(Constructor, protoProps, staticProps) { if (protoProps) consultation_defineProperties(Constructor.prototype, protoProps); if (staticProps) consultation_defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }




var consultation_Consultation = /*#__PURE__*/function () {
  function Consultation(record, context) {
    var _this = this;

    consultation_classCallCheck(this, Consultation);

    Object.assign(this, record);
    this.context = context;

    if (!(this.workflow instanceof workflow_Workflow)) {
      this.workflow = new workflow_Workflow(this.workflow);
    }

    this.steps = this.workflow.steps.map(function (s) {
      return new Step(s, _this);
    });
  }

  consultation_createClass(Consultation, [{
    key: "toRef",
    value: function toRef() {
      return {
        _typeRef: 'consultation',
        id: this.id
      };
    }
  }]);

  return Consultation;
}();


// EXTERNAL MODULE: ../config/node_modules/@babel/runtime/regenerator/index.js
var regenerator = __webpack_require__("92ce");
var regenerator_default = /*#__PURE__*/__webpack_require__.n(regenerator);

// EXTERNAL MODULE: ./node_modules/lodash.debounce/index.js
var lodash_debounce = __webpack_require__("f7fe");
var lodash_debounce_default = /*#__PURE__*/__webpack_require__.n(lodash_debounce);

// CONCATENATED MODULE: ./src/lib/expressions.js
function _wrapRegExp() { _wrapRegExp = function _wrapRegExp(re, groups) { return new BabelRegExp(re, void 0, groups); }; var _super = RegExp.prototype, _groups = new WeakMap(); function BabelRegExp(re, flags, groups) { var _this = new RegExp(re, flags); return _groups.set(_this, groups || _groups.get(re)), _setPrototypeOf(_this, BabelRegExp.prototype); } function buildGroups(result, re) { var g = _groups.get(re); return Object.keys(g).reduce(function (groups, name) { return groups[name] = result[g[name]], groups; }, Object.create(null)); } return _inherits(BabelRegExp, RegExp), BabelRegExp.prototype.exec = function (str) { var result = _super.exec.call(this, str); return result && (result.groups = buildGroups(result, this)), result; }, BabelRegExp.prototype[Symbol.replace] = function (str, substitution) { if ("string" == typeof substitution) { var groups = _groups.get(this); return _super[Symbol.replace].call(this, str, substitution.replace(/\$<([^>]+)>/g, function (_, name) { return "$" + groups[name]; })); } if ("function" == typeof substitution) { var _this = this; return _super[Symbol.replace].call(this, str, function () { var args = arguments; return "object" != expressions_typeof(args[args.length - 1]) && (args = [].slice.call(args)).push(buildGroups(args, _this)), substitution.apply(this, args); }); } return _super[Symbol.replace].call(this, str, substitution); }, _wrapRegExp.apply(this, arguments); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); Object.defineProperty(subClass, "prototype", { writable: false }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function expressions_typeof(obj) { "@babel/helpers - typeof"; return expressions_typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, expressions_typeof(obj); }

function _createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }



function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

var jsep = __webpack_require__("160b");

var BINOPS = {
  '||': function _(a, b) {
    return a || b;
  },
  '&&': function _(a, b) {
    return a && b;
  },
  '==': function _(a, b) {
    return a == b;
  },
  '!=': function _(a, b) {
    return a != b;
  },
  '===': function _(a, b) {
    return a === b;
  },
  '!==': function _(a, b) {
    return a !== b;
  },
  '<': function _(a, b) {
    return a < b;
  },
  '>': function _(a, b) {
    return a > b;
  },
  '<=': function _(a, b) {
    return a <= b;
  },
  '>=': function _(a, b) {
    return a >= b;
  },
  '<<': function _(a, b) {
    return a << b;
  },
  '>>': function _(a, b) {
    return a >> b;
  },
  '+': function _(a, b) {
    return a + b;
  },
  '-': function _(a, b) {
    return a - b;
  },
  '*': function _(a, b) {
    return a * b;
  },
  '/': function _(a, b) {
    return a / b;
  },
  '%': function _(a, b) {
    return a % b;
  }
};
var UNOPS = {
  '-': function _(a) {
    return -a;
  },
  '!': function _(a) {
    return !a;
  }
}; // Unregister uncommon operators that we choose to not support in order to minimize errors in expressions

['~', '+'].forEach(function (op) {
  return jsep.removeUnaryOp(op);
});
['|', '^', '&', '<<', '>>', '>>>'].forEach(function (op) {
  return jsep.removeBinaryOp(op);
});
var parse = jsep;

function stringifyAst(node) {
  if (node.type === 'BinaryExpression' || node.type === 'LogicalExpression') {
    return '(' + stringifyAst(node.left) + ' ' + node.operator + ' ' + stringifyAst(node.right) + ')';
  }

  if (node.type === 'UnaryExpression') {
    return node.operator + stringifyAst(node.argument);
  }

  if (node.type === 'MemberExpression') {
    return stringifyAst(node.object) + '[' + stringifyAst(node.property) + ']';
  }

  if (node.type === 'Identifier') {
    return node.name;
  }

  if (node.type === 'Literal') {
    if (typeof node.value === 'string') {
      return '"' + node.value + '"';
    }

    return '' + node.value;
  }

  if (node.type === 'CallExpression') {
    return stringifyAst(node.callee) + '(' + node.arguments.map(stringifyAst).join(', ') + ')';
  }

  if (node.type === 'ArrayExpression') {
    return '[' + node.elements.map(stringifyAst).join(', ') + ']';
  }

  if (node.type === 'Compound') {
    return node.body.map(function (e) {
      return stringifyAst(e);
    }).join(' ');
  }

  if (node.type === 'ConditionalExpression') {
    return stringifyAst(node.test) + ' ? ' + stringifyAst(node.consequent) + ' : ' + stringifyAst(node.alternate);
  }

  return '???';
}

function callFn(_x, _x2, _x3) {
  return _callFn.apply(this, arguments);
}

function _callFn() {
  _callFn = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee(node, fn, args) {
    return regenerator_default.a.wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            _context.prev = 0;
            _context.next = 3;
            return fn.apply(null, args);

          case 3:
            return _context.abrupt("return", _context.sent);

          case 6:
            _context.prev = 6;
            _context.t0 = _context["catch"](0);
            // eslint-disable-next-line
            console.error(' [DOKBOT] CallExpression failure: ' + stringifyAst(node), _context.t0);
            return _context.abrupt("return", undefined);

          case 10:
          case "end":
            return _context.stop();
        }
      }
    }, _callee, null, [[0, 6]]);
  }));
  return _callFn.apply(this, arguments);
}

function evaluateAst(_x4, _x5) {
  return _evaluateAst.apply(this, arguments);
}

function _evaluateAst() {
  _evaluateAst = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee3(node, context) {
    var resolveFns,
        resolve,
        left,
        right,
        result,
        object,
        property,
        args,
        callee,
        _iterator,
        _step,
        a,
        results,
        _iterator2,
        _step2,
        e,
        test,
        _args3 = arguments;

    return regenerator_default.a.wrap(function _callee3$(_context3) {
      while (1) {
        switch (_context3.prev = _context3.next) {
          case 0:
            resolveFns = _args3.length > 2 && _args3[2] !== undefined ? _args3[2] : true;

            // Values that resolve to a function are treated as CallExpressions with default arguments
            resolve = /*#__PURE__*/function () {
              var _ref = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee2(v) {
                return regenerator_default.a.wrap(function _callee2$(_context2) {
                  while (1) {
                    switch (_context2.prev = _context2.next) {
                      case 0:
                        if (!(resolveFns && typeof v === 'function')) {
                          _context2.next = 6;
                          break;
                        }

                        _context2.next = 3;
                        return callFn(node, v);

                      case 3:
                        _context2.t0 = _context2.sent;
                        _context2.next = 7;
                        break;

                      case 6:
                        _context2.t0 = v;

                      case 7:
                        return _context2.abrupt("return", _context2.t0);

                      case 8:
                      case "end":
                        return _context2.stop();
                    }
                  }
                }, _callee2);
              }));

              return function resolve(_x12) {
                return _ref.apply(this, arguments);
              };
            }();

            if (!(node.type === 'BinaryExpression' || node.type === 'LogicalExpression')) {
              _context3.next = 10;
              break;
            }

            _context3.next = 5;
            return evaluateAst(node.left, context);

          case 5:
            left = _context3.sent;
            _context3.next = 8;
            return evaluateAst(node.right, context);

          case 8:
            right = _context3.sent;
            return _context3.abrupt("return", BINOPS[node.operator](left, right));

          case 10:
            if (!(node.type === 'UnaryExpression')) {
              _context3.next = 15;
              break;
            }

            _context3.next = 13;
            return evaluateAst(node.argument, context);

          case 13:
            result = _context3.sent;
            return _context3.abrupt("return", UNOPS[node.operator](result));

          case 15:
            if (!(node.type === 'MemberExpression')) {
              _context3.next = 25;
              break;
            }

            _context3.next = 18;
            return evaluateAst(node.object, context);

          case 18:
            object = _context3.sent;

            if (!node.computed) {
              _context3.next = 24;
              break;
            }

            _context3.next = 22;
            return evaluateAst(node.property, context);

          case 22:
            property = _context3.sent;
            return _context3.abrupt("return", resolve(object[property]));

          case 24:
            return _context3.abrupt("return", resolve(object[node.property.name]));

          case 25:
            if (!(node.type === 'Identifier')) {
              _context3.next = 28;
              break;
            }

            if (!(node.name in context) && Dokbot.meta.verbose) {
              // eslint-disable-next-line
              console.warn(' [DOKBOT] Expression Identifer not found:', node.name);
            }

            return _context3.abrupt("return", resolve(context[node.name]));

          case 28:
            if (!(node.type === 'Literal')) {
              _context3.next = 30;
              break;
            }

            return _context3.abrupt("return", node.value);

          case 30:
            if (!(node.type === 'CallExpression')) {
              _context3.next = 60;
              break;
            }

            args = [];
            _context3.next = 34;
            return evaluateAst(node.callee, context, false);

          case 34:
            callee = _context3.sent;

            if (callee) {
              _context3.next = 37;
              break;
            }

            throw new Error('Undefined function at CallExpression: ' + stringifyAst(node));

          case 37:
            _iterator = _createForOfIteratorHelper(node.arguments);
            _context3.prev = 38;

            _iterator.s();

          case 40:
            if ((_step = _iterator.n()).done) {
              _context3.next = 49;
              break;
            }

            a = _step.value;
            _context3.t0 = args;
            _context3.next = 45;
            return evaluateAst(a, context);

          case 45:
            _context3.t1 = _context3.sent;

            _context3.t0.push.call(_context3.t0, _context3.t1);

          case 47:
            _context3.next = 40;
            break;

          case 49:
            _context3.next = 54;
            break;

          case 51:
            _context3.prev = 51;
            _context3.t2 = _context3["catch"](38);

            _iterator.e(_context3.t2);

          case 54:
            _context3.prev = 54;

            _iterator.f();

            return _context3.finish(54);

          case 57:
            _context3.next = 59;
            return callFn(node, callee, args);

          case 59:
            return _context3.abrupt("return", _context3.sent);

          case 60:
            if (!(node.type === 'ArrayExpression')) {
              _context3.next = 83;
              break;
            }

            results = [];
            _iterator2 = _createForOfIteratorHelper(node.elements);
            _context3.prev = 63;

            _iterator2.s();

          case 65:
            if ((_step2 = _iterator2.n()).done) {
              _context3.next = 74;
              break;
            }

            e = _step2.value;
            _context3.t3 = results;
            _context3.next = 70;
            return evaluateAst(e, context);

          case 70:
            _context3.t4 = _context3.sent;

            _context3.t3.push.call(_context3.t3, _context3.t4);

          case 72:
            _context3.next = 65;
            break;

          case 74:
            _context3.next = 79;
            break;

          case 76:
            _context3.prev = 76;
            _context3.t5 = _context3["catch"](63);

            _iterator2.e(_context3.t5);

          case 79:
            _context3.prev = 79;

            _iterator2.f();

            return _context3.finish(79);

          case 82:
            return _context3.abrupt("return", results);

          case 83:
            if (!(node.type === 'ConditionalExpression')) {
              _context3.next = 94;
              break;
            }

            _context3.next = 86;
            return evaluateAst(node.test, context);

          case 86:
            test = _context3.sent;

            if (!test) {
              _context3.next = 91;
              break;
            }

            _context3.next = 90;
            return evaluateAst(node.consequent, context);

          case 90:
            return _context3.abrupt("return", _context3.sent);

          case 91:
            _context3.next = 93;
            return evaluateAst(node.alternate, context);

          case 93:
            return _context3.abrupt("return", _context3.sent);

          case 94:
            throw new Error("Unsupported ".concat(node.type, " expression type at: ") + stringifyAst(node));

          case 95:
          case "end":
            return _context3.stop();
        }
      }
    }, _callee3, null, [[38, 51, 54, 57], [63, 76, 79, 82]]);
  }));
  return _evaluateAst.apply(this, arguments);
}

function compile(expression) {
  var ast = parse(expression);
  var compiled = evaluateAst.bind(null, ast);
  compiled.expression = expression;
  compiled.ast = ast;
  return compiled;
}

function expressions_evaluate(_x6) {
  return lib_expressions_evaluate.apply(this, arguments);
}

function lib_expressions_evaluate() {
  lib_expressions_evaluate = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee4(input) {
    var type,
        _len,
        contexts,
        _key,
        context,
        result,
        _iterator3,
        _step3,
        value,
        _i,
        _Object$keys,
        k,
        expression,
        _args4 = arguments;

    return regenerator_default.a.wrap(function _callee4$(_context4) {
      while (1) {
        switch (_context4.prev = _context4.next) {
          case 0:
            type = expressions_typeof(input);

            for (_len = _args4.length, contexts = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
              contexts[_key - 1] = _args4[_key];
            }

            context = Object.assign.apply(Object, [{}].concat(contexts));

            if (!(!input || type !== 'string' && type !== 'object')) {
              _context4.next = 5;
              break;
            }

            return _context4.abrupt("return");

          case 5:
            if (!(type === 'object')) {
              _context4.next = 41;
              break;
            }

            if (!(input instanceof Array)) {
              _context4.next = 30;
              break;
            }

            result = [];
            _iterator3 = _createForOfIteratorHelper(input);
            _context4.prev = 9;

            _iterator3.s();

          case 11:
            if ((_step3 = _iterator3.n()).done) {
              _context4.next = 20;
              break;
            }

            value = _step3.value;
            _context4.t0 = result;
            _context4.next = 16;
            return expressions_evaluate(value, context);

          case 16:
            _context4.t1 = _context4.sent;

            _context4.t0.push.call(_context4.t0, _context4.t1);

          case 18:
            _context4.next = 11;
            break;

          case 20:
            _context4.next = 25;
            break;

          case 22:
            _context4.prev = 22;
            _context4.t2 = _context4["catch"](9);

            _iterator3.e(_context4.t2);

          case 25:
            _context4.prev = 25;

            _iterator3.f();

            return _context4.finish(25);

          case 28:
            _context4.next = 40;
            break;

          case 30:
            result = {};
            _i = 0, _Object$keys = Object.keys(input);

          case 32:
            if (!(_i < _Object$keys.length)) {
              _context4.next = 40;
              break;
            }

            k = _Object$keys[_i];
            _context4.next = 36;
            return expressions_evaluate(input[k], context);

          case 36:
            result[k] = _context4.sent;

          case 37:
            _i++;
            _context4.next = 32;
            break;

          case 40:
            return _context4.abrupt("return", result);

          case 41:
            expression = input.trim();

            if (expression) {
              _context4.next = 44;
              break;
            }

            return _context4.abrupt("return");

          case 44:
            _context4.next = 46;
            return compile(expression)(context);

          case 46:
            return _context4.abrupt("return", _context4.sent);

          case 47:
          case "end":
            return _context4.stop();
        }
      }
    }, _callee4, null, [[9, 22, 25, 28]]);
  }));
  return lib_expressions_evaluate.apply(this, arguments);
}

function interpolator(_x7, _x8) {
  return _interpolator.apply(this, arguments);
}

function _interpolator() {
  _interpolator = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee5(input, process) {
    var result, type, _iterator4, _step4, value, _i2, _Object$keys2, k, matches, extract, _extract2, _label, expression, _iterator5, _step5, match, _extract3, _label2, _expression, _value;

    return regenerator_default.a.wrap(function _callee5$(_context5) {
      while (1) {
        switch (_context5.prev = _context5.next) {
          case 0:
            type = expressions_typeof(input);

            if (!(!input || type !== 'string' && type !== 'object')) {
              _context5.next = 3;
              break;
            }

            return _context5.abrupt("return", input);

          case 3:
            if (!(type === 'object')) {
              _context5.next = 39;
              break;
            }

            if (!(input instanceof Array)) {
              _context5.next = 28;
              break;
            }

            result = [];
            _iterator4 = _createForOfIteratorHelper(input);
            _context5.prev = 7;

            _iterator4.s();

          case 9:
            if ((_step4 = _iterator4.n()).done) {
              _context5.next = 18;
              break;
            }

            value = _step4.value;
            _context5.t0 = result;
            _context5.next = 14;
            return interpolator(value, process);

          case 14:
            _context5.t1 = _context5.sent;

            _context5.t0.push.call(_context5.t0, _context5.t1);

          case 16:
            _context5.next = 9;
            break;

          case 18:
            _context5.next = 23;
            break;

          case 20:
            _context5.prev = 20;
            _context5.t2 = _context5["catch"](7);

            _iterator4.e(_context5.t2);

          case 23:
            _context5.prev = 23;

            _iterator4.f();

            return _context5.finish(23);

          case 26:
            _context5.next = 38;
            break;

          case 28:
            result = {};
            _i2 = 0, _Object$keys2 = Object.keys(input);

          case 30:
            if (!(_i2 < _Object$keys2.length)) {
              _context5.next = 38;
              break;
            }

            k = _Object$keys2[_i2];
            _context5.next = 34;
            return interpolator(input[k], process);

          case 34:
            result[k] = _context5.sent;

          case 35:
            _i2++;
            _context5.next = 30;
            break;

          case 38:
            return _context5.abrupt("return", result);

          case 39:
            matches = input.match(/{{([\s\S]*?)}}/g);

            extract = function extract(str) {
              return str.match( /*#__PURE__*/_wrapRegExp(/^\{\{\s*(?:([\sa-zA-Z0-9_'"!@$-]*?)\s*:)?\s*([\s\S]*?)\s*\}\}$/, {
                label: 1,
                expression: 2
              })).groups;
            };

            result = input;

            if (matches) {
              _context5.next = 44;
              break;
            }

            return _context5.abrupt("return", result);

          case 44:
            if (!(matches.length === 1 && input.match(/^{{.*}}$/))) {
              _context5.next = 49;
              break;
            }

            // Short circuit return for full statement match in order to retain type
            _extract2 = extract(matches[0]), _label = _extract2.label, expression = _extract2.expression;
            _context5.next = 48;
            return process(expression, _label);

          case 48:
            return _context5.abrupt("return", _context5.sent);

          case 49:
            _iterator5 = _createForOfIteratorHelper(matches);
            _context5.prev = 50;

            _iterator5.s();

          case 52:
            if ((_step5 = _iterator5.n()).done) {
              _context5.next = 61;
              break;
            }

            match = _step5.value;
            _extract3 = extract(match), _label2 = _extract3.label, _expression = _extract3.expression;
            _context5.next = 57;
            return process(_expression, _label2);

          case 57:
            _value = _context5.sent;
            result = result.replace(match, _value !== undefined ? _value : '');

          case 59:
            _context5.next = 52;
            break;

          case 61:
            _context5.next = 66;
            break;

          case 63:
            _context5.prev = 63;
            _context5.t3 = _context5["catch"](50);

            _iterator5.e(_context5.t3);

          case 66:
            _context5.prev = 66;

            _iterator5.f();

            return _context5.finish(66);

          case 69:
            return _context5.abrupt("return", result);

          case 70:
          case "end":
            return _context5.stop();
        }
      }
    }, _callee5, null, [[7, 20, 23, 26], [50, 63, 66, 69]]);
  }));
  return _interpolator.apply(this, arguments);
}

function expressions_interpolate(_x9) {
  return lib_expressions_interpolate.apply(this, arguments);
}

function lib_expressions_interpolate() {
  lib_expressions_interpolate = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee6(input) {
    var _len2,
        contexts,
        _key2,
        context,
        _args6 = arguments;

    return regenerator_default.a.wrap(function _callee6$(_context6) {
      while (1) {
        switch (_context6.prev = _context6.next) {
          case 0:
            for (_len2 = _args6.length, contexts = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
              contexts[_key2 - 1] = _args6[_key2];
            }

            context = Object.assign.apply(Object, [{}].concat(contexts));
            _context6.next = 4;
            return interpolator(input, function (expr) {
              var result = expressions_evaluate(expr, context);

              if (result === undefined) {
                // eslint-disable-next-line
                console.error(" [DOKBOT] Interpolation failure: Expression ".concat(label, " yielded undefined: ").concat(expr));
              }

              return result;
            });

          case 4:
            return _context6.abrupt("return", _context6.sent);

          case 5:
          case "end":
            return _context6.stop();
        }
      }
    }, _callee6);
  }));
  return lib_expressions_interpolate.apply(this, arguments);
}

function expressions_extract(_x10) {
  return _extract.apply(this, arguments);
}

function _extract() {
  _extract = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee7(input) {
    var expressions;
    return regenerator_default.a.wrap(function _callee7$(_context7) {
      while (1) {
        switch (_context7.prev = _context7.next) {
          case 0:
            expressions = {}; // Currently extracting only labeled expressions

            _context7.next = 3;
            return interpolator(input, function (expr, label) {
              if (label) {
                expressions[label] = expr;
              }
            });

          case 3:
            return _context7.abrupt("return", expressions);

          case 4:
          case "end":
            return _context7.stop();
        }
      }
    }, _callee7);
  }));
  return _extract.apply(this, arguments);
}

function insert(_x11) {
  return _insert.apply(this, arguments);
}

function _insert() {
  _insert = _asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee8(input) {
    var values,
        _args8 = arguments;
    return regenerator_default.a.wrap(function _callee8$(_context8) {
      while (1) {
        switch (_context8.prev = _context8.next) {
          case 0:
            values = _args8.length > 1 && _args8[1] !== undefined ? _args8[1] : {};
            _context8.next = 3;
            return interpolator(input, function (expr, label) {
              return values[label];
            });

          case 3:
            return _context8.abrupt("return", _context8.sent);

          case 4:
          case "end":
            return _context8.stop();
        }
      }
    }, _callee8);
  }));
  return _insert.apply(this, arguments);
}

/* harmony default export */ var lib_expressions = ({
  compile: compile,
  evaluate: expressions_evaluate,
  interpolator: interpolator,
  interpolate: expressions_interpolate,
  extract: expressions_extract,
  insert: insert
});
// CONCATENATED MODULE: ./src/models/context.js
function context_createForOfIteratorHelper(o, allowArrayLike) { var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"]; if (!it) { if (Array.isArray(o) || (it = context_unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = it.call(o); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it.return != null) it.return(); } finally { if (didErr) throw err; } } }; }



function context_asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function context_asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { context_asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { context_asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || context_unsupportedIterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function context_unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return context_arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return context_arrayLikeToArray(o, minLen); }

function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && iter[Symbol.iterator] != null || iter["@@iterator"] != null) return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return context_arrayLikeToArray(arr); }

function context_arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function context_typeof(obj) { "@babel/helpers - typeof"; return context_typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (obj) { return typeof obj; } : function (obj) { return obj && "function" == typeof Symbol && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }, context_typeof(obj); }

function context_classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function context_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function context_createClass(Constructor, protoProps, staticProps) { if (protoProps) context_defineProperties(Constructor.prototype, protoProps); if (staticProps) context_defineProperties(Constructor, staticProps); Object.defineProperty(Constructor, "prototype", { writable: false }); return Constructor; }




var context_Context = /*#__PURE__*/function () {
  function Context(kit, parent, state) {
    var _this = this;

    context_classCallCheck(this, Context);

    this.kit = kit;
    this.parent = parent;
    this.state = Object.assign({
      consultation: null,
      step: null
    }, state); // TODO: remove rootState from the project

    this.rootState = parent ? parent.rootState : this.state;
    this.listeners = [];

    var bind = function bind(o) {
      var prefix = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
      var result = {};
      Object.keys(o || {}).forEach(function (k) {
        var type = context_typeof(o[k]);

        var dk = prefix + k;

        if (type === 'function') {
          result[k] = function () {
            for (var _len = arguments.length, params = new Array(_len), _key = 0; _key < _len; _key++) {
              params[_key] = arguments[_key];
            }

            var result = o[k].apply(null, params);

            _this.transcribe('helper', dk, {
              params: params,
              result: result
            });

            return result;
          };
        } else if (type === 'object') {
          result[k] = bind(o[k], dk + '.');
        }
      });
      return result;
    };

    this.boundHelpers = bind(kit.helpers);
    this.persistTranscript = lodash_debounce_default()(function () {
      if (_this.rootState.transcript) {
        // We copy the records to ensure that they don't get truncated before we send them
        Dokbot.Backend.transcribe(_toConsumableArray(_this.rootState.transcript));
        _this.rootState.transcript.length = 0;
      }
    }, 2000, {
      leading: false,
      trailing: true,
      maxWait: 4000
    });
  }

  context_createClass(Context, [{
    key: "consultation",
    get: function get() {
      return this.state.consultation;
    },
    set: // TODO: ask Serhii if it's ok to write setter like this
    function set(consultation) {
      this.state.consultation = consultation;
    }
  }, {
    key: "workflow",
    get: function get() {
      return this.consultation ? this.consultation.workflow : null;
    }
  }, {
    key: "step",
    get: function get() {
      return this.state.step;
    },
    set: function set(step) {
      this.state.step = step;
    }
  }, {
    key: "handlers",
    get: function get() {
      var handlers = [];

      if (this.workflow) {
        handlers.push.apply(handlers, _toConsumableArray(this.workflow.handlers));
      }

      if (this.step) {
        handlers.push.apply(handlers, _toConsumableArray(this.step.handlers));
        var type = this.kit.types[this.step.type];

        if (type && type.handlers) {
          handlers.unshift.apply(handlers, _toConsumableArray(type.handlers(this.step.options)));
        }
      }

      return handlers;
    }
  }, {
    key: "listen",
    value: function () {
      var _listen = context_asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee(event, callback) {
        var _this2 = this;

        var listener;
        return regenerator_default.a.wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                listener = {
                  event: event,
                  callback: callback
                };
                this.listeners.push(listener); // A function to remove the listener

                return _context.abrupt("return", function () {
                  var index = _this2.listeners.indexOf(listener);

                  _this2.listeners.splice(index, 1);
                });

              case 3:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function listen(_x, _x2) {
        return _listen.apply(this, arguments);
      }

      return listen;
    }()
  }, {
    key: "action",
    value: function () {
      var _action = context_asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee2(id) {
        var _this$kit$actions$id;

        var actionContext,
            _len2,
            params,
            _key2,
            _args2 = arguments;

        return regenerator_default.a.wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                if (this.kit.actions[id]) {
                  _context2.next = 2;
                  break;
                }

                throw new Error("Unsupported action: ".concat(id));

              case 2:
                actionContext = {
                  rootState: this.rootState,
                  state: this.state,
                  data: this.data,
                  kit: this.kit,
                  // Ensures these can be used destructured without losing `this` reference
                  emit: this.emit.bind(this),
                  action: this.action.bind(this),
                  evaluate: this.evaluate.bind(this),
                  interpolate: this.interpolate.bind(this)
                }; // eslint-disable-next-line

                for (_len2 = _args2.length, params = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
                  params[_key2 - 1] = _args2[_key2];
                }

                this.transcribe('action', id, params);
                _context2.next = 7;
                return (_this$kit$actions$id = this.kit.actions[id]).call.apply(_this$kit$actions$id, [actionContext].concat(params));

              case 7:
                return _context2.abrupt("return", _context2.sent);

              case 8:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function action(_x3) {
        return _action.apply(this, arguments);
      }

      return action;
    }()
  }, {
    key: "buildStateList",
    value: function buildStateList() {
      var state = [];
      var internal = {};

      if (this.consultation) {
        state.push(this.consultation.data);
        Object.assign(internal, {
          __consultation: this.consultation
        });
      }

      if (this.step) {
        state.push(this.step.state);
        Object.assign(internal, {
          __step: this.step
        });
      }

      state.push.apply(state, arguments);
      state.push(internal);
      return state;
    }
  }, {
    key: "evaluate",
    value: function () {
      var _evaluate = context_asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee3(expression) {
        var _len3,
            paramsets,
            _key3,
            _args3 = arguments;

        return regenerator_default.a.wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                for (_len3 = _args3.length, paramsets = new Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
                  paramsets[_key3 - 1] = _args3[_key3];
                }

                _context3.prev = 1;
                _context3.next = 4;
                return lib_expressions.evaluate.apply(lib_expressions, [expression].concat(_toConsumableArray(this.buildStateList.apply(this, paramsets)), [this.boundHelpers]));

              case 4:
                return _context3.abrupt("return", _context3.sent);

              case 7:
                _context3.prev = 7;
                _context3.t0 = _context3["catch"](1);
                this.transcribe('error', 'evaluate', {
                  message: _context3.t0.message,
                  stack: _context3.t0.stack,
                  expression: expression,
                  paramsets: paramsets
                }); // FIXME: Replace with a unicode symbol

                return _context3.abrupt("return", '~~~~~~~~');

              case 11:
              case "end":
                return _context3.stop();
            }
          }
        }, _callee3, this, [[1, 7]]);
      }));

      function evaluate(_x4) {
        return _evaluate.apply(this, arguments);
      }

      return evaluate;
    }()
  }, {
    key: "interpolate",
    value: function () {
      var _interpolate = context_asyncToGenerator( /*#__PURE__*/regenerator_default.a.mark(function _callee4(input) {
        var _len4,
            paramsets,
            _key4,
            _args4 = arguments;

        return regenerator_default.a.wrap(function _callee4$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                for (_len4 = _args4.length, paramsets = new Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
                  paramsets[_key4 - 1] = _args4[_key4];
                }

                _context4.prev = 1;
                _context4.next = 4;
                return lib_expressions.interpolate.apply(lib_expressions, [input].concat(_toConsumableArray(this.buildStateList.