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core.js
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			/**
			* @license
			* Lodash (Custom Build) <https://lodash.com/>
			* Build: `lodash core -o ./dist/lodash.core.js`
			* 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 = '4.17.20';

			/** Error message constants. */
			var FUNC_ERROR_TEXT = 'Expected a function';

			/** 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_PARTIAL_FLAG = 32;

			/** Used as references for various `Number` constants. */
			var INFINITY = 1 / 0,
			MAX_SAFE_INTEGER = 9007199254740991;

			/** `Object#toString` result references. */
			var argsTag = '[object Arguments]',
			arrayTag = '[object Array]',
			asyncTag = '[object AsyncFunction]',
			boolTag = '[object Boolean]',
			dateTag = '[object Date]',
			errorTag = '[object Error]',
			funcTag = '[object Function]',
			genTag = '[object GeneratorFunction]',
			numberTag = '[object Number]',
			objectTag = '[object Object]',
			proxyTag = '[object Proxy]',
			regexpTag = '[object RegExp]',
			stringTag = '[object String]';

			/** Used to match HTML entities and HTML characters. */
			var reUnescapedHtml = /[&<>"']/g,
			reHasUnescapedHtml = RegExp(reUnescapedHtml.source);

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

			/** Used to map characters to HTML entities. */
			var htmlEscapes = {
			'&': '&',
			'<': '<',
			'>': '>',
			'"': '"',
			"'": '''
			};

			/** 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 = typeof exports == 'object' && exports && !exports.nodeType && exports;

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

			/--------------------------------------------------------------------------/

			/**
			* 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) {
			array.push.apply(array, values);
			return array;
			}

			/**
			* 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 `_.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 `_.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 baseMap(props, function(key) {
			return object[key];
			});
			}

			/**
			* 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);

			/**
			* 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));
			};
			}

			/--------------------------------------------------------------------------/

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

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

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

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

			/** Built-in value references. */
			var objectCreate = Object.create,
			propertyIsEnumerable = objectProto.propertyIsEnumerable;

			/* Built-in method references for those with the same name as other `lodash` methods. */
			var nativeIsFinite = root.isFinite,
			nativeKeys = overArg(Object.keys, Object),
			nativeMax = Math.max;

			/------------------------------------------------------------------------/

			/**
			* 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) {
			return value instanceof LodashWrapper
			? value
			: 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 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;
			}

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

			/------------------------------------------------------------------------/

			/**
			* 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);
			}
			}

			/**
			* 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) {
			object[key] = value;
			}

			/**
			* 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 `_.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 `_.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 && !false)
			: comparator(current, computed)
			)) {
			var computed = current,
			result = value;
			}
			}
			return result;
			}

			/**
			* 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();

			/**
			* 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 `_.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 baseFilter(props, function(key) {
			return isFunction(object[key]);
			});
			}

			/**
			* 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) {
			return 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 `_.isArguments`.
			*
			* @private
			* @param {*} value The value to check.
			* @returns {boolean} Returns `true` if `value` is an `arguments` object,
			*/
			var baseIsArguments = noop;

			/**
			* 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 : baseGetTag(object),
			othTag = othIsArr ? arrayTag : baseGetTag(other);

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

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

			stack \|\| (stack = []);
			var objStack = find(stack, function(entry) {
			return entry[0] == object;
			});
			var othStack = find(stack, function(entry) {
			return entry[0] == other;
			});
			if (objStack && othStack) {
			return objStack[1] == other;
			}
			stack.push([object, other]);
			stack.push([other, object]);
			if (isSameTag && !objIsObj) {
			var result = (objIsArr)
			? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
			: equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
			stack.pop();
			return result;
			}
			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;

			var result = equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
			stack.pop();
			return result;
			}
			}
			if (!isSameTag) {
			return false;
			}
			var result = equalObjects(object, other, bitmask, customizer, equalFunc, stack);
			stack.pop();
			return result;
			}

			/**
			* 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 `_.iteratee`.
			*
			* @private
			* @param {*} [value=_.identity] The value to convert to an iteratee.
			* @returns {Function} Returns the iteratee.
			*/
			function baseIteratee(func) {
			if (typeof func == 'function') {
			return func;
			}
			if (func == null) {
			return identity;
			}
			return (typeof func == 'object' ? baseMatches : baseProperty)(func);
			}

			/**
			* 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 props = nativeKeys(source);
			return function(object) {
			var length = props.length;
			if (object == null) {
			return !length;
			}
			object = Object(object);
			while (length--) {
			var key = props[length];
			if (!(key in object &&
			baseIsEqual(source[key], object[key], COMPARE_PARTIAL_FLAG \| COMPARE_UNORDERED_FLAG)
			)) {
			return false;
			}
			}
			return true;
			};
			}

			/**
			* 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, props) {
			object = Object(object);
			return reduce(props, function(result, key) {
			if (key in object) {
			result[key] = object[key];
			}
			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 `_.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;
			}

			/**
			* 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) {
			return baseSlice(source, 0, source.length);
			}

			/**
			* 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 `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;
			return reduce(actions, function(result, action) {
			return action.func.apply(action.thisArg, arrayPush([result], action.args));
			}, result);
			}

			/**
			* 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 = false;

			var othIsDefined = other !== undefined,
			othIsNull = other === null,
			othIsReflexive = other === other,
			othIsSymbol = false;

			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;
			}

			/**
			* 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;
			}

			/**
			* 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;

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

			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 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;
			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 `_.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 = baseIteratee(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 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) {
			if (typeof func != 'function') {
			throw new TypeError(FUNC_ERROR_TEXT);
			}
			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 fn.apply(isBind ? thisArg : this, args);
			}
			return wrapper;
			}

			/**
			* 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) ? [] : undefined;

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

			var compared;
			if (compared !== undefined) {
			if (compared) {
			continue;
			}
			result = false;
			break;
			}
			// Recursively compare arrays (susceptible to call stack limits).
			if (seen) {
			if (!baseSome(other, function(othValue, othIndex) {
			if (!indexOf(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;
			}
			}
			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 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 + '');

			}
			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 = keys(object),
			objLength = objProps.length,
			othProps = keys(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;

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

			var compared;
			// 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;
			}
			}
			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 + '');
			}

			/**
			* 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);
			}

			/**
			* 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;
			}

			/**
			* 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 func.apply(this, otherArgs);
			};
			}

			/**
			* 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 = identity;

			/------------------------------------------------------------------------/

			/**
			* 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) {
			return baseFilter(array, Boolean);
			}

			/**
			* 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));
			}

			/**
			* 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, baseIteratee(predicate, 3), index);
			}

			/**
			* 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) : [];
			}

			/**
			* 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 (typeof fromIndex == 'number') {
			fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex;
			} else {
			fromIndex = 0;
			}
			var index = (fromIndex \|\| 0) - 1,
			isReflexive = value === value;

			while (++index < length) {
			var other = array[index];
			if ((isReflexive ? other === value : other !== other)) {
			return index;
			}
			}
			return -1;
			}

			/**
			* 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;
			}

			/**
			* 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;
			start = start == null ? 0 : +start;
			end = end === undefined ? length : +end;
			return length ? baseSlice(array, start, end) : [];
			}

			/------------------------------------------------------------------------/

			/**
			* 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);
			}

			/**
			* 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 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__);
			}

			/------------------------------------------------------------------------/

			/**
			* 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) {
			predicate = guard ? undefined : predicate;
			return baseEvery(collection, baseIteratee(predicate));
			}

			/**
			* 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) {
			return baseFilter(collection, baseIteratee(predicate));
			}

			/**
			* 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);

			/**
			* 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) {
			return baseEach(collection, baseIteratee(iteratee));
			}

			/**
			* 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) {
			return baseMap(collection, baseIteratee(iteratee));
			}

			/**
			* 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) {
			return baseReduce(collection, baseIteratee(iteratee), accumulator, arguments.length < 3, baseEach);
			}

			/**
			* 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;
			}
			collection = isArrayLike(collection) ? collection : nativeKeys(collection);
			return 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) {
			predicate = guard ? undefined : predicate;
			return baseSome(collection, baseIteratee(predicate));
			}

			/**
			* 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]]
			*/
			function sortBy(collection, iteratee) {
			var index = 0;
			iteratee = baseIteratee(iteratee);

			return baseMap(baseMap(collection, function(value, key, collection) {
			return { 'value': value, 'index': index++, 'criteria': iteratee(value, key, collection) };
			}).sort(function(object, other) {
			return compareAscending(object.criteria, other.criteria) \|\| (object.index - other.index);
			}), baseProperty('value'));
			}

			/------------------------------------------------------------------------/

			/**
			* 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) {
			return createPartial(func, WRAP_BIND_FLAG \| WRAP_PARTIAL_FLAG, thisArg, partials);
			});

			/**
			* 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 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;
			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 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) {
			if (!isObject(value)) {
			return value;
			}
			return isArray(value) ? copyArray(value) : copyObject(value, nativeKeys(value));
			}

			/**
			* 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 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 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);
			}

			/**
			* 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 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 = baseIsDate;

			/**
			* 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 (isArrayLike(value) &&
			(isArray(value) \|\| isString(value) \|\|
			isFunction(value.splice) \|\| isArguments(value))) {
			return !value.length;
			}
			return !nativeKeys(value).length;
			}

			/**
			* 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);
			}

			/**
			* 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 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 `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 `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 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 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 = baseIsRegExp;

			/**
			* 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 `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;
			}

			/**
			* 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 (!isArrayLike(value)) {
			return values(value);
			}
			return value.length ? copyArray(value) : [];
			}

			/**
			* 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
			*/
			var toInteger = Number;

			/**
			* 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
			*/
			var toNumber = Number;

			/**
			* 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) {
			if (typeof value == 'string') {
			return value;
			}
			return value == null ? '' : (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) {
			copyObject(source, nativeKeys(source), object);
			});

			/**
			* 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, nativeKeysIn(source), object);
			});

			/**
			* 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 : assign(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;
			});

			/**
			* 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 && hasOwnProperty.call(object, path);
			}

			/**
			* 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']
			*/
			var keys = nativeKeys;

			/**
			* 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)
			*/
			var keysIn = nativeKeysIn;

			/**
			* 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);
			});

			/**
			* 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) {
			var value = object == null ? undefined : object[path];
			if (value === undefined) {
			value = defaultValue;
			}
			return isFunction(value) ? value.call(object) : value;
			}

			/**
			* 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));
			}

			/------------------------------------------------------------------------/

			/**
			* 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, & pebbles'
			*/
			function escape(string) {
			string = toString(string);
			return (string && reHasUnescapedHtml.test(string))
			? string.replace(reUnescapedHtml, escapeHtmlChar)
			: string;
			}

			/------------------------------------------------------------------------/

			/**
			* 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']
			*/
			var iteratee = baseIteratee;

			/**
			* 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(assign({}, source));
			}

			/**
			* 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);

			baseEach(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.
			}

			/**
			* 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;
			}

			/------------------------------------------------------------------------/

			/**
			* 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;
			}

			/**
			* 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;
			}

			/------------------------------------------------------------------------/

			// Add methods that return wrapped values in chain sequences.
			lodash.assignIn = assignIn;
			lodash.before = before;
			lodash.bind = bind;
			lodash.chain = chain;
			lodash.compact = compact;
			lodash.concat = concat;
			lodash.create = create;
			lodash.defaults = defaults;
			lodash.defer = defer;
			lodash.delay = delay;
			lodash.filter = filter;
			lodash.flatten = flatten;
			lodash.flattenDeep = flattenDeep;
			lodash.iteratee = iteratee;
			lodash.keys = keys;
			lodash.map = map;
			lodash.matches = matches;
			lodash.mixin = mixin;
			lodash.negate = negate;
			lodash.once = once;
			lodash.pick = pick;
			lodash.slice = slice;
			lodash.sortBy = sortBy;
			lodash.tap = tap;
			lodash.thru = thru;
			lodash.toArray = toArray;
			lodash.values = values;

			// Add aliases.
			lodash.extend = assignIn;

			// Add methods to `lodash.prototype`.
			mixin(lodash, lodash);

			/------------------------------------------------------------------------/

			// Add methods that return unwrapped values in chain sequences.
			lodash.clone = clone;
			lodash.escape = escape;
			lodash.every = every;
			lodash.find = find;
			lodash.forEach = forEach;
			lodash.has = has;
			lodash.head = head;
			lodash.identity = identity;
			lodash.indexOf = indexOf;
			lodash.isArguments = isArguments;
			lodash.isArray = isArray;
			lodash.isBoolean = isBoolean;
			lodash.isDate = isDate;
			lodash.isEmpty = isEmpty;
			lodash.isEqual = isEqual;
			lodash.isFinite = isFinite;
			lodash.isFunction = isFunction;
			lodash.isNaN = isNaN;
			lodash.isNull = isNull;
			lodash.isNumber = isNumber;
			lodash.isObject = isObject;
			lodash.isRegExp = isRegExp;
			lodash.isString = isString;
			lodash.isUndefined = isUndefined;
			lodash.last = last;
			lodash.max = max;
			lodash.min = min;
			lodash.noConflict = noConflict;
			lodash.noop = noop;
			lodash.reduce = reduce;
			lodash.result = result;
			lodash.size = size;
			lodash.some = some;
			lodash.uniqueId = uniqueId;

			// Add aliases.
			lodash.each = forEach;
			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;

			// Add `Array` methods to `lodash.prototype`.
			baseEach(['pop', 'join', 'replace', 'reverse', 'split', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
			var func = (/^(?:replace\|split)$/.test(methodName) ? String.prototype : arrayProto)[methodName],
			chainName = /^(?:push\|sort\|unshift)$/.test(methodName) ? 'tap' : 'thru',
			retUnwrapped = /^(?:pop\|join\|replace\|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);
			});
			};
			});

			// Add chain sequence methods to the `lodash` wrapper.
			lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;

			/--------------------------------------------------------------------------/

			// Some AMD build optimizers, like r.js, check for condition patterns like:
			if (typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
			// 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._ = lodash;

			// Define as an anonymous module so, through path mapping, it can be
			// referenced as the "underscore" module.
			define(function() {
			return lodash;
			});
			}
			// Check for `exports` after `define` in case a build optimizer adds it.
			else if (freeModule) {
			// Export for Node.js.
			(freeModule.exports = lodash)._ = lodash;
			// Export for CommonJS support.
			freeExports._ = lodash;
			}
			else {
			// Export to the global object.
			root._ = lodash;
			}
			}.call(this));