daux/dist/daux.js

(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global.Daux = {})));
}(this, (function (exports) { 'use strict';

	function createCommonjsModule(fn, module) {
		return module = { exports: {} }, fn(module, module.exports), module.exports;
	}

	var _global = createCommonjsModule(function (module) {
	// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028
	var global = module.exports = typeof window != 'undefined' && window.Math == Math
	  ? window : typeof self != 'undefined' && self.Math == Math ? self
	  // eslint-disable-next-line no-new-func
	  : Function('return this')();
	if (typeof __g == 'number') __g = global; // eslint-disable-line no-undef
	});

	var _core = createCommonjsModule(function (module) {
	var core = module.exports = { version: '2.5.7' };
	if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
	});
	var _core_1 = _core.version;

	var _isObject = function (it) {
	  return typeof it === 'object' ? it !== null : typeof it === 'function';
	};

	var _anObject = function (it) {
	  if (!_isObject(it)) throw TypeError(it + ' is not an object!');
	  return it;
	};

	var _fails = function (exec) {
	  try {
	    return !!exec();
	  } catch (e) {
	    return true;
	  }
	};

	// Thank's IE8 for his funny defineProperty
	var _descriptors = !_fails(function () {
	  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
	});

	var document$1 = _global.document;
	// typeof document.createElement is 'object' in old IE
	var is = _isObject(document$1) && _isObject(document$1.createElement);
	var _domCreate = function (it) {
	  return is ? document$1.createElement(it) : {};
	};

	var _ie8DomDefine = !_descriptors && !_fails(function () {
	  return Object.defineProperty(_domCreate('div'), 'a', { get: function () { return 7; } }).a != 7;
	});

	// 7.1.1 ToPrimitive(input [, PreferredType])

	// instead of the ES6 spec version, we didn't implement @@toPrimitive case
	// and the second argument - flag - preferred type is a string
	var _toPrimitive = function (it, S) {
	  if (!_isObject(it)) return it;
	  var fn, val;
	  if (S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
	  if (typeof (fn = it.valueOf) == 'function' && !_isObject(val = fn.call(it))) return val;
	  if (!S && typeof (fn = it.toString) == 'function' && !_isObject(val = fn.call(it))) return val;
	  throw TypeError("Can't convert object to primitive value");
	};

	var dP = Object.defineProperty;

	var f = _descriptors ? Object.defineProperty : function defineProperty(O, P, Attributes) {
	  _anObject(O);
	  P = _toPrimitive(P, true);
	  _anObject(Attributes);
	  if (_ie8DomDefine) try {
	    return dP(O, P, Attributes);
	  } catch (e) { /* empty */ }
	  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
	  if ('value' in Attributes) O[P] = Attributes.value;
	  return O;
	};

	var _objectDp = {
		f: f
	};

	var _propertyDesc = function (bitmap, value) {
	  return {
	    enumerable: !(bitmap & 1),
	    configurable: !(bitmap & 2),
	    writable: !(bitmap & 4),
	    value: value
	  };
	};

	var _hide = _descriptors ? function (object, key, value) {
	  return _objectDp.f(object, key, _propertyDesc(1, value));
	} : function (object, key, value) {
	  object[key] = value;
	  return object;
	};

	var hasOwnProperty = {}.hasOwnProperty;
	var _has = function (it, key) {
	  return hasOwnProperty.call(it, key);
	};

	var id = 0;
	var px = Math.random();
	var _uid = function (key) {
	  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
	};

	var _redefine = createCommonjsModule(function (module) {
	var SRC = _uid('src');
	var TO_STRING = 'toString';
	var $toString = Function[TO_STRING];
	var TPL = ('' + $toString).split(TO_STRING);

	_core.inspectSource = function (it) {
	  return $toString.call(it);
	};

	(module.exports = function (O, key, val, safe) {
	  var isFunction = typeof val == 'function';
	  if (isFunction) _has(val, 'name') || _hide(val, 'name', key);
	  if (O[key] === val) return;
	  if (isFunction) _has(val, SRC) || _hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));
	  if (O === _global) {
	    O[key] = val;
	  } else if (!safe) {
	    delete O[key];
	    _hide(O, key, val);
	  } else if (O[key]) {
	    O[key] = val;
	  } else {
	    _hide(O, key, val);
	  }
	// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative
	})(Function.prototype, TO_STRING, function toString() {
	  return typeof this == 'function' && this[SRC] || $toString.call(this);
	});
	});

	var _aFunction = function (it) {
	  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
	  return it;
	};

	// optional / simple context binding

	var _ctx = function (fn, that, length) {
	  _aFunction(fn);
	  if (that === undefined) return fn;
	  switch (length) {
	    case 1: return function (a) {
	      return fn.call(that, a);
	    };
	    case 2: return function (a, b) {
	      return fn.call(that, a, b);
	    };
	    case 3: return function (a, b, c) {
	      return fn.call(that, a, b, c);
	    };
	  }
	  return function (/* ...args */) {
	    return fn.apply(that, arguments);
	  };
	};

	var PROTOTYPE = 'prototype';

	var $export = function (type, name, source) {
	  var IS_FORCED = type & $export.F;
	  var IS_GLOBAL = type & $export.G;
	  var IS_STATIC = type & $export.S;
	  var IS_PROTO = type & $export.P;
	  var IS_BIND = type & $export.B;
	  var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] || (_global[name] = {}) : (_global[name] || {})[PROTOTYPE];
	  var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
	  var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
	  var key, own, out, exp;
	  if (IS_GLOBAL) source = name;
	  for (key in source) {
	    // contains in native
	    own = !IS_FORCED && target && target[key] !== undefined;
	    // export native or passed
	    out = (own ? target : source)[key];
	    // bind timers to global for call from export context
	    exp = IS_BIND && own ? _ctx(out, _global) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
	    // extend global
	    if (target) _redefine(target, key, out, type & $export.U);
	    // export
	    if (exports[key] != out) _hide(exports, key, exp);
	    if (IS_PROTO && expProto[key] != out) expProto[key] = out;
	  }
	};
	_global.core = _core;
	// type bitmap
	$export.F = 1;   // forced
	$export.G = 2;   // global
	$export.S = 4;   // static
	$export.P = 8;   // proto
	$export.B = 16;  // bind
	$export.W = 32;  // wrap
	$export.U = 64;  // safe
	$export.R = 128; // real proto method for `library`
	var _export = $export;

	var toString = {}.toString;

	var _cof = function (it) {
	  return toString.call(it).slice(8, -1);
	};

	// fallback for non-array-like ES3 and non-enumerable old V8 strings

	// eslint-disable-next-line no-prototype-builtins
	var _iobject = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
	  return _cof(it) == 'String' ? it.split('') : Object(it);
	};

	// 7.2.1 RequireObjectCoercible(argument)
	var _defined = function (it) {
	  if (it == undefined) throw TypeError("Can't call method on  " + it);
	  return it;
	};

	// to indexed object, toObject with fallback for non-array-like ES3 strings


	var _toIobject = function (it) {
	  return _iobject(_defined(it));
	};

	// 7.1.4 ToInteger
	var ceil = Math.ceil;
	var floor = Math.floor;
	var _toInteger = function (it) {
	  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
	};

	// 7.1.15 ToLength

	var min = Math.min;
	var _toLength = function (it) {
	  return it > 0 ? min(_toInteger(it), 0x1fffffffffffff) : 0; // pow(2, 53) - 1 == 9007199254740991
	};

	var max = Math.max;
	var min$1 = Math.min;
	var _toAbsoluteIndex = function (index, length) {
	  index = _toInteger(index);
	  return index < 0 ? max(index + length, 0) : min$1(index, length);
	};

	// false -> Array#indexOf
	// true  -> Array#includes



	var _arrayIncludes = function (IS_INCLUDES) {
	  return function ($this, el, fromIndex) {
	    var O = _toIobject($this);
	    var length = _toLength(O.length);
	    var index = _toAbsoluteIndex(fromIndex, length);
	    var value;
	    // Array#includes uses SameValueZero equality algorithm
	    // eslint-disable-next-line no-self-compare
	    if (IS_INCLUDES && el != el) while (length > index) {
	      value = O[index++];
	      // eslint-disable-next-line no-self-compare
	      if (value != value) return true;
	    // Array#indexOf ignores holes, Array#includes - not
	    } else for (;length > index; index++) if (IS_INCLUDES || index in O) {
	      if (O[index] === el) return IS_INCLUDES || index || 0;
	    } return !IS_INCLUDES && -1;
	  };
	};

	var _library = false;

	var _shared = createCommonjsModule(function (module) {
	var SHARED = '__core-js_shared__';
	var store = _global[SHARED] || (_global[SHARED] = {});

	(module.exports = function (key, value) {
	  return store[key] || (store[key] = value !== undefined ? value : {});
	})('versions', []).push({
	  version: _core.version,
	  mode: 'global',
	  copyright: '© 2018 Denis Pushkarev (zloirock.ru)'
	});
	});

	var shared = _shared('keys');

	var _sharedKey = function (key) {
	  return shared[key] || (shared[key] = _uid(key));
	};

	var arrayIndexOf = _arrayIncludes(false);
	var IE_PROTO = _sharedKey('IE_PROTO');

	var _objectKeysInternal = function (object, names) {
	  var O = _toIobject(object);
	  var i = 0;
	  var result = [];
	  var key;
	  for (key in O) if (key != IE_PROTO) _has(O, key) && result.push(key);
	  // Don't enum bug & hidden keys
	  while (names.length > i) if (_has(O, key = names[i++])) {
	    ~arrayIndexOf(result, key) || result.push(key);
	  }
	  return result;
	};

	// IE 8- don't enum bug keys
	var _enumBugKeys = (
	  'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'
	).split(',');

	// 19.1.2.14 / 15.2.3.14 Object.keys(O)



	var _objectKeys = Object.keys || function keys(O) {
	  return _objectKeysInternal(O, _enumBugKeys);
	};

	var f$1 = Object.getOwnPropertySymbols;

	var _objectGops = {
		f: f$1
	};

	var f$2 = {}.propertyIsEnumerable;

	var _objectPie = {
		f: f$2
	};

	// 7.1.13 ToObject(argument)

	var _toObject = function (it) {
	  return Object(_defined(it));
	};

	// 19.1.2.1 Object.assign(target, source, ...)





	var $assign = Object.assign;

	// should work with symbols and should have deterministic property order (V8 bug)
	var _objectAssign = !$assign || _fails(function () {
	  var A = {};
	  var B = {};
	  // eslint-disable-next-line no-undef
	  var S = Symbol();
	  var K = 'abcdefghijklmnopqrst';
	  A[S] = 7;
	  K.split('').forEach(function (k) { B[k] = k; });
	  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
	}) ? function assign(target, source) { // eslint-disable-line no-unused-vars
	  var T = _toObject(target);
	  var aLen = arguments.length;
	  var index = 1;
	  var getSymbols = _objectGops.f;
	  var isEnum = _objectPie.f;
	  while (aLen > index) {
	    var S = _iobject(arguments[index++]);
	    var keys = getSymbols ? _objectKeys(S).concat(getSymbols(S)) : _objectKeys(S);
	    var length = keys.length;
	    var j = 0;
	    var key;
	    while (length > j) if (isEnum.call(S, key = keys[j++])) T[key] = S[key];
	  } return T;
	} : $assign;

	// 19.1.3.1 Object.assign(target, source)


	_export(_export.S + _export.F, 'Object', { assign: _objectAssign });

	function _typeof(obj) {
	  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
	    _typeof = function (obj) {
	      return typeof obj;
	    };
	  } else {
	    _typeof = function (obj) {
	      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
	    };
	  }

	  return _typeof(obj);
	}

	function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
	  try {
	    var info = gen[key](arg);
	    var value = info.value;
	  } catch (error) {
	    reject(error);
	    return;
	  }

	  if (info.done) {
	    resolve(value);
	  } else {
	    Promise.resolve(value).then(_next, _throw);
	  }
	}

	function _asyncToGenerator(fn) {
	  return function () {
	    var self = this,
	        args = arguments;
	    return new Promise(function (resolve, reject) {
	      var gen = fn.apply(self, args);

	      function _next(value) {
	        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
	      }

	      function _throw(err) {
	        asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
	      }

	      _next(undefined);
	    });
	  };
	}

	function _classCallCheck(instance, Constructor) {
	  if (!(instance instanceof Constructor)) {
	    throw new TypeError("Cannot call a class as a function");
	  }
	}

	function _defineProperties(target, props) {
	  for (var i = 0; i < props.length; i++) {
	    var descriptor = props[i];
	    descriptor.enumerable = descriptor.enumerable || false;
	    descriptor.configurable = true;
	    if ("value" in descriptor) descriptor.writable = true;
	    Object.defineProperty(target, descriptor.key, descriptor);
	  }
	}

	function _createClass(Constructor, protoProps, staticProps) {
	  if (protoProps) _defineProperties(Constructor.prototype, protoProps);
	  if (staticProps) _defineProperties(Constructor, staticProps);
	  return Constructor;
	}

	function _defineProperty(obj, key, value) {
	  if (key in obj) {
	    Object.defineProperty(obj, key, {
	      value: value,
	      enumerable: true,
	      configurable: true,
	      writable: true
	    });
	  } else {
	    obj[key] = value;
	  }

	  return obj;
	}

	function _toConsumableArray(arr) {
	  return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
	}

	function _arrayWithoutHoles(arr) {
	  if (Array.isArray(arr)) {
	    for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];

	    return arr2;
	  }
	}

	function _iterableToArray(iter) {
	  if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
	}

	function _nonIterableSpread() {
	  throw new TypeError("Invalid attempt to spread non-iterable instance");
	}

	/**
	 * @class Model
	 * @namespace Daux.Core
	 */
	var Model =
	/*#__PURE__*/
	function () {
	  function Model() {
	    _classCallCheck(this, Model);
	  }

	  _createClass(Model, null, [{
	    key: "deserialize",

	    /**
	     * @param {Object} record
	     * @return {Object} Deserialized record
	     * @function
	     */
	    value: function deserialize(record) {
	      return Object.assign({}, record);
	    }
	  }, {
	    key: "attributes",

	    /**
	     * @type {Array}
	     */
	    get: function get() {
	      return [];
	    }
	    /**
	     * @type {Object}
	     */

	  }, {
	    key: "relationship",
	    get: function get() {
	      return {};
	    }
	  }]);

	  return Model;
	}();

	var _wks = createCommonjsModule(function (module) {
	var store = _shared('wks');

	var Symbol = _global.Symbol;
	var USE_SYMBOL = typeof Symbol == 'function';

	var $exports = module.exports = function (name) {
	  return store[name] || (store[name] =
	    USE_SYMBOL && Symbol[name] || (USE_SYMBOL ? Symbol : _uid)('Symbol.' + name));
	};

	$exports.store = store;
	});

	// 22.1.3.31 Array.prototype[@@unscopables]
	var UNSCOPABLES = _wks('unscopables');
	var ArrayProto = Array.prototype;
	if (ArrayProto[UNSCOPABLES] == undefined) _hide(ArrayProto, UNSCOPABLES, {});
	var _addToUnscopables = function (key) {
	  ArrayProto[UNSCOPABLES][key] = true;
	};

	// https://github.com/tc39/Array.prototype.includes

	var $includes = _arrayIncludes(true);

	_export(_export.P, 'Array', {
	  includes: function includes(el /* , fromIndex = 0 */) {
	    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
	  }
	});

	_addToUnscopables('includes');

	// 7.2.8 IsRegExp(argument)


	var MATCH = _wks('match');
	var _isRegexp = function (it) {
	  var isRegExp;
	  return _isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : _cof(it) == 'RegExp');
	};

	// helper for String#{startsWith, endsWith, includes}



	var _stringContext = function (that, searchString, NAME) {
	  if (_isRegexp(searchString)) throw TypeError('String#' + NAME + " doesn't accept regex!");
	  return String(_defined(that));
	};

	var MATCH$1 = _wks('match');
	var _failsIsRegexp = function (KEY) {
	  var re = /./;
	  try {
	    '/./'[KEY](re);
	  } catch (e) {
	    try {
	      re[MATCH$1] = false;
	      return !'/./'[KEY](re);
	    } catch (f) { /* empty */ }
	  } return true;
	};

	var INCLUDES = 'includes';

	_export(_export.P + _export.F * _failsIsRegexp(INCLUDES), 'String', {
	  includes: function includes(searchString /* , position = 0 */) {
	    return !!~_stringContext(this, searchString, INCLUDES)
	      .indexOf(searchString, arguments.length > 1 ? arguments[1] : undefined);
	  }
	});

	var _objectDps = _descriptors ? Object.defineProperties : function defineProperties(O, Properties) {
	  _anObject(O);
	  var keys = _objectKeys(Properties);
	  var length = keys.length;
	  var i = 0;
	  var P;
	  while (length > i) _objectDp.f(O, P = keys[i++], Properties[P]);
	  return O;
	};

	var document$2 = _global.document;
	var _html = document$2 && document$2.documentElement;

	// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])



	var IE_PROTO$1 = _sharedKey('IE_PROTO');
	var Empty = function () { /* empty */ };
	var PROTOTYPE$1 = 'prototype';

	// Create object with fake `null` prototype: use iframe Object with cleared prototype
	var createDict = function () {
	  // Thrash, waste and sodomy: IE GC bug
	  var iframe = _domCreate('iframe');
	  var i = _enumBugKeys.length;
	  var lt = '<';
	  var gt = '>';
	  var iframeDocument;
	  iframe.style.display = 'none';
	  _html.appendChild(iframe);
	  iframe.src = 'javascript:'; // eslint-disable-line no-script-url
	  // createDict = iframe.contentWindow.Object;
	  // html.removeChild(iframe);
	  iframeDocument = iframe.contentWindow.document;
	  iframeDocument.open();
	  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
	  iframeDocument.close();
	  createDict = iframeDocument.F;
	  while (i--) delete createDict[PROTOTYPE$1][_enumBugKeys[i]];
	  return createDict();
	};

	var _objectCreate = Object.create || function create(O, Properties) {
	  var result;
	  if (O !== null) {
	    Empty[PROTOTYPE$1] = _anObject(O);
	    result = new Empty();
	    Empty[PROTOTYPE$1] = null;
	    // add "__proto__" for Object.getPrototypeOf polyfill
	    result[IE_PROTO$1] = O;
	  } else result = createDict();
	  return Properties === undefined ? result : _objectDps(result, Properties);
	};

	var _redefineAll = function (target, src, safe) {
	  for (var key in src) _redefine(target, key, src[key], safe);
	  return target;
	};

	var _anInstance = function (it, Constructor, name, forbiddenField) {
	  if (!(it instanceof Constructor) || (forbiddenField !== undefined && forbiddenField in it)) {
	    throw TypeError(name + ': incorrect invocation!');
	  } return it;
	};

	// call something on iterator step with safe closing on error

	var _iterCall = function (iterator, fn, value, entries) {
	  try {
	    return entries ? fn(_anObject(value)[0], value[1]) : fn(value);
	  // 7.4.6 IteratorClose(iterator, completion)
	  } catch (e) {
	    var ret = iterator['return'];
	    if (ret !== undefined) _anObject(ret.call(iterator));
	    throw e;
	  }
	};

	var _iterators = {};

	// check on default Array iterator

	var ITERATOR = _wks('iterator');
	var ArrayProto$1 = Array.prototype;

	var _isArrayIter = function (it) {
	  return it !== undefined && (_iterators.Array === it || ArrayProto$1[ITERATOR] === it);
	};

	// getting tag from 19.1.3.6 Object.prototype.toString()

	var TAG = _wks('toStringTag');
	// ES3 wrong here
	var ARG = _cof(function () { return arguments; }()) == 'Arguments';

	// fallback for IE11 Script Access Denied error
	var tryGet = function (it, key) {
	  try {
	    return it[key];
	  } catch (e) { /* empty */ }
	};

	var _classof = function (it) {
	  var O, T, B;
	  return it === undefined ? 'Undefined' : it === null ? 'Null'
	    // @@toStringTag case
	    : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T
	    // builtinTag case
	    : ARG ? _cof(O)
	    // ES3 arguments fallback
	    : (B = _cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
	};

	var ITERATOR$1 = _wks('iterator');

	var core_getIteratorMethod = _core.getIteratorMethod = function (it) {
	  if (it != undefined) return it[ITERATOR$1]
	    || it['@@iterator']
	    || _iterators[_classof(it)];
	};

	var _forOf = createCommonjsModule(function (module) {
	var BREAK = {};
	var RETURN = {};
	var exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
	  var iterFn = ITERATOR ? function () { return iterable; } : core_getIteratorMethod(iterable);
	  var f = _ctx(fn, that, entries ? 2 : 1);
	  var index = 0;
	  var length, step, iterator, result;
	  if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
	  // fast case for arrays with default iterator
	  if (_isArrayIter(iterFn)) for (length = _toLength(iterable.length); length > index; index++) {
	    result = entries ? f(_anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
	    if (result === BREAK || result === RETURN) return result;
	  } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
	    result = _iterCall(iterator, f, step.value, entries);
	    if (result === BREAK || result === RETURN) return result;
	  }
	};
	exports.BREAK = BREAK;
	exports.RETURN = RETURN;
	});

	var def = _objectDp.f;

	var TAG$1 = _wks('toStringTag');

	var _setToStringTag = function (it, tag, stat) {
	  if (it && !_has(it = stat ? it : it.prototype, TAG$1)) def(it, TAG$1, { configurable: true, value: tag });
	};

	var IteratorPrototype = {};

	// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()
	_hide(IteratorPrototype, _wks('iterator'), function () { return this; });

	var _iterCreate = function (Constructor, NAME, next) {
	  Constructor.prototype = _objectCreate(IteratorPrototype, { next: _propertyDesc(1, next) });
	  _setToStringTag(Constructor, NAME + ' Iterator');
	};

	// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)


	var IE_PROTO$2 = _sharedKey('IE_PROTO');
	var ObjectProto = Object.prototype;

	var _objectGpo = Object.getPrototypeOf || function (O) {
	  O = _toObject(O);
	  if (_has(O, IE_PROTO$2)) return O[IE_PROTO$2];
	  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
	    return O.constructor.prototype;
	  } return O instanceof Object ? ObjectProto : null;
	};

	var ITERATOR$2 = _wks('iterator');
	var BUGGY = !([].keys && 'next' in [].keys()); // Safari has buggy iterators w/o `next`
	var FF_ITERATOR = '@@iterator';
	var KEYS = 'keys';
	var VALUES = 'values';

	var returnThis = function () { return this; };

	var _iterDefine = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
	  _iterCreate(Constructor, NAME, next);
	  var getMethod = function (kind) {
	    if (!BUGGY && kind in proto) return proto[kind];
	    switch (kind) {
	      case KEYS: return function keys() { return new Constructor(this, kind); };
	      case VALUES: return function values() { return new Constructor(this, kind); };
	    } return function entries() { return new Constructor(this, kind); };
	  };
	  var TAG = NAME + ' Iterator';
	  var DEF_VALUES = DEFAULT == VALUES;
	  var VALUES_BUG = false;
	  var proto = Base.prototype;
	  var $native = proto[ITERATOR$2] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
	  var $default = $native || getMethod(DEFAULT);
	  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
	  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
	  var methods, key, IteratorPrototype;
	  // Fix native
	  if ($anyNative) {
	    IteratorPrototype = _objectGpo($anyNative.call(new Base()));
	    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
	      // Set @@toStringTag to native iterators
	      _setToStringTag(IteratorPrototype, TAG, true);
	      // fix for some old engines
	      if (typeof IteratorPrototype[ITERATOR$2] != 'function') _hide(IteratorPrototype, ITERATOR$2, returnThis);
	    }
	  }
	  // fix Array#{values, @@iterator}.name in V8 / FF
	  if (DEF_VALUES && $native && $native.name !== VALUES) {
	    VALUES_BUG = true;
	    $default = function values() { return $native.call(this); };
	  }
	  // Define iterator
	  if (BUGGY || VALUES_BUG || !proto[ITERATOR$2]) {
	    _hide(proto, ITERATOR$2, $default);
	  }
	  // Plug for library
	  _iterators[NAME] = $default;
	  _iterators[TAG] = returnThis;
	  if (DEFAULT) {
	    methods = {
	      values: DEF_VALUES ? $default : getMethod(VALUES),
	      keys: IS_SET ? $default : getMethod(KEYS),
	      entries: $entries
	    };
	    if (FORCED) for (key in methods) {
	      if (!(key in proto)) _redefine(proto, key, methods[key]);
	    } else _export(_export.P + _export.F * (BUGGY || VALUES_BUG), NAME, methods);
	  }
	  return methods;
	};

	var _iterStep = function (done, value) {
	  return { value: value, done: !!done };
	};

	var SPECIES = _wks('species');

	var _setSpecies = function (KEY) {
	  var C = _global[KEY];
	  if (_descriptors && C && !C[SPECIES]) _objectDp.f(C, SPECIES, {
	    configurable: true,
	    get: function () { return this; }
	  });
	};

	var _meta = createCommonjsModule(function (module) {
	var META = _uid('meta');


	var setDesc = _objectDp.f;
	var id = 0;
	var isExtensible = Object.isExtensible || function () {
	  return true;
	};
	var FREEZE = !_fails(function () {
	  return isExtensible(Object.preventExtensions({}));
	});
	var setMeta = function (it) {
	  setDesc(it, META, { value: {
	    i: 'O' + ++id, // object ID
	    w: {}          // weak collections IDs
	  } });
	};
	var fastKey = function (it, create) {
	  // return primitive with prefix
	  if (!_isObject(it)) return typeof it == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;
	  if (!_has(it, META)) {
	    // can't set metadata to uncaught frozen object
	    if (!isExtensible(it)) return 'F';
	    // not necessary to add metadata
	    if (!create) return 'E';
	    // add missing metadata
	    setMeta(it);
	  // return object ID
	  } return it[META].i;
	};
	var getWeak = function (it, create) {
	  if (!_has(it, META)) {
	    // can't set metadata to uncaught frozen object
	    if (!isExtensible(it)) return true;
	    // not necessary to add metadata
	    if (!create) return false;
	    // add missing metadata
	    setMeta(it);
	  // return hash weak collections IDs
	  } return it[META].w;
	};
	// add metadata on freeze-family methods calling
	var onFreeze = function (it) {
	  if (FREEZE && meta.NEED && isExtensible(it) && !_has(it, META)) setMeta(it);
	  return it;
	};
	var meta = module.exports = {
	  KEY: META,
	  NEED: false,
	  fastKey: fastKey,
	  getWeak: getWeak,
	  onFreeze: onFreeze
	};
	});
	var _meta_1 = _meta.KEY;
	var _meta_2 = _meta.NEED;
	var _meta_3 = _meta.fastKey;
	var _meta_4 = _meta.getWeak;
	var _meta_5 = _meta.onFreeze;

	var _validateCollection = function (it, TYPE) {
	  if (!_isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');
	  return it;
	};

	var dP$1 = _objectDp.f;









	var fastKey = _meta.fastKey;

	var SIZE = _descriptors ? '_s' : 'size';

	var getEntry = function (that, key) {
	  // fast case
	  var index = fastKey(key);
	  var entry;
	  if (index !== 'F') return that._i[index];
	  // frozen object case
	  for (entry = that._f; entry; entry = entry.n) {
	    if (entry.k == key) return entry;
	  }
	};

	var _collectionStrong = {
	  getConstructor: function (wrapper, NAME, IS_MAP, ADDER) {
	    var C = wrapper(function (that, iterable) {
	      _anInstance(that, C, NAME, '_i');
	      that._t = NAME;         // collection type
	      that._i = _objectCreate(null); // index
	      that._f = undefined;    // first entry
	      that._l = undefined;    // last entry
	      that[SIZE] = 0;         // size
	      if (iterable != undefined) _forOf(iterable, IS_MAP, that[ADDER], that);
	    });
	    _redefineAll(C.prototype, {
	      // 23.1.3.1 Map.prototype.clear()
	      // 23.2.3.2 Set.prototype.clear()
	      clear: function clear() {
	        for (var that = _validateCollection(this, NAME), data = that._i, entry = that._f; entry; entry = entry.n) {
	          entry.r = true;
	          if (entry.p) entry.p = entry.p.n = undefined;
	          delete data[entry.i];
	        }
	        that._f = that._l = undefined;
	        that[SIZE] = 0;
	      },
	      // 23.1.3.3 Map.prototype.delete(key)
	      // 23.2.3.4 Set.prototype.delete(value)
	      'delete': function (key) {
	        var that = _validateCollection(this, NAME);
	        var entry = getEntry(that, key);
	        if (entry) {
	          var next = entry.n;
	          var prev = entry.p;
	          delete that._i[entry.i];
	          entry.r = true;
	          if (prev) prev.n = next;
	          if (next) next.p = prev;
	          if (that._f == entry) that._f = next;
	          if (that._l == entry) that._l = prev;
	          that[SIZE]--;
	        } return !!entry;
	      },
	      // 23.2.3.6 Set.prototype.forEach(callbackfn, thisArg = undefined)
	      // 23.1.3.5 Map.prototype.forEach(callbackfn, thisArg = undefined)
	      forEach: function forEach(callbackfn /* , that = undefined */) {
	        _validateCollection(this, NAME);
	        var f = _ctx(callbackfn, arguments.length > 1 ? arguments[1] : undefined, 3);
	        var entry;
	        while (entry = entry ? entry.n : this._f) {
	          f(entry.v, entry.k, this);
	          // revert to the last existing entry
	          while (entry && entry.r) entry = entry.p;
	        }
	      },
	      // 23.1.3.7 Map.prototype.has(key)
	      // 23.2.3.7 Set.prototype.has(value)
	      has: function has(key) {
	        return !!getEntry(_validateCollection(this, NAME), key);
	      }
	    });
	    if (_descriptors) dP$1(C.prototype, 'size', {
	      get: function () {
	        return _validateCollection(this, NAME)[SIZE];
	      }
	    });
	    return C;
	  },
	  def: function (that, key, value) {
	    var entry = getEntry(that, key);
	    var prev, index;
	    // change existing entry
	    if (entry) {
	      entry.v = value;
	    // create new entry
	    } else {
	      that._l = entry = {
	        i: index = fastKey(key, true), // <- index
	        k: key,                        // <- key
	        v: value,                      // <- value
	        p: prev = that._l,             // <- previous entry
	        n: undefined,                  // <- next entry
	        r: false                       // <- removed
	      };
	      if (!that._f) that._f = entry;
	      if (prev) prev.n = entry;
	      that[SIZE]++;
	      // add to index
	      if (index !== 'F') that._i[index] = entry;
	    } return that;
	  },
	  getEntry: getEntry,
	  setStrong: function (C, NAME, IS_MAP) {
	    // add .keys, .values, .entries, [@@iterator]
	    // 23.1.3.4, 23.1.3.8, 23.1.3.11, 23.1.3.12, 23.2.3.5, 23.2.3.8, 23.2.3.10, 23.2.3.11
	    _iterDefine(C, NAME, function (iterated, kind) {
	      this._t = _validateCollection(iterated, NAME); // target
	      this._k = kind;                     // kind
	      this._l = undefined;                // previous
	    }, function () {
	      var that = this;
	      var kind = that._k;
	      var entry = that._l;
	      // revert to the last existing entry
	      while (entry && entry.r) entry = entry.p;
	      // get next entry
	      if (!that._t || !(that._l = entry = entry ? entry.n : that._t._f)) {
	        // or finish the iteration
	        that._t = undefined;
	        return _iterStep(1);
	      }
	      // return step by kind
	      if (kind == 'keys') return _iterStep(0, entry.k);
	      if (kind == 'values') return _iterStep(0, entry.v);
	      return _iterStep(0, [entry.k, entry.v]);
	    }, IS_MAP ? 'entries' : 'values', !IS_MAP, true);

	    // add [@@species], 23.1.2.2, 23.2.2.2
	    _setSpecies(NAME);
	  }
	};

	var ITERATOR$3 = _wks('iterator');
	var SAFE_CLOSING = false;

	try {
	  var riter = [7][ITERATOR$3]();
	  riter['return'] = function () { SAFE_CLOSING = true; };
	} catch (e) { /* empty */ }

	var _iterDetect = function (exec, skipClosing) {
	  if (!skipClosing && !SAFE_CLOSING) return false;
	  var safe = false;
	  try {
	    var arr = [7];
	    var iter = arr[ITERATOR$3]();
	    iter.next = function () { return { done: safe = true }; };
	    arr[ITERATOR$3] = function () { return iter; };
	    exec(arr);
	  } catch (e) { /* empty */ }
	  return safe;
	};

	var gOPD = Object.getOwnPropertyDescriptor;

	var f$3 = _descriptors ? gOPD : function getOwnPropertyDescriptor(O, P) {
	  O = _toIobject(O);
	  P = _toPrimitive(P, true);
	  if (_ie8DomDefine) try {
	    return gOPD(O, P);
	  } catch (e) { /* empty */ }
	  if (_has(O, P)) return _propertyDesc(!_objectPie.f.call(O, P), O[P]);
	};

	var _objectGopd = {
		f: f$3
	};

	// Works with __proto__ only. Old v8 can't work with null proto objects.
	/* eslint-disable no-proto */


	var check = function (O, proto) {
	  _anObject(O);
	  if (!_isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
	};
	var _setProto = {
	  set: Object.setPrototypeOf || ('__proto__' in {} ? // eslint-disable-line
	    function (test, buggy, set) {
	      try {
	        set = _ctx(Function.call, _objectGopd.f(Object.prototype, '__proto__').set, 2);
	        set(test, []);
	        buggy = !(test instanceof Array);
	      } catch (e) { buggy = true; }
	      return function setPrototypeOf(O, proto) {
	        check(O, proto);
	        if (buggy) O.__proto__ = proto;
	        else set(O, proto);
	        return O;
	      };
	    }({}, false) : undefined),
	  check: check
	};

	var setPrototypeOf = _setProto.set;
	var _inheritIfRequired = function (that, target, C) {
	  var S = target.constructor;
	  var P;
	  if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && _isObject(P) && setPrototypeOf) {
	    setPrototypeOf(that, P);
	  } return that;
	};

	var _collection = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
	  var Base = _global[NAME];
	  var C = Base;
	  var ADDER = IS_MAP ? 'set' : 'add';
	  var proto = C && C.prototype;
	  var O = {};
	  var fixMethod = function (KEY) {
	    var fn = proto[KEY];
	    _redefine(proto, KEY,
	      KEY == 'delete' ? function (a) {
	        return IS_WEAK && !_isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
	      } : KEY == 'has' ? function has(a) {
	        return IS_WEAK && !_isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
	      } : KEY == 'get' ? function get(a) {
	        return IS_WEAK && !_isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
	      } : KEY == 'add' ? function add(a) { fn.call(this, a === 0 ? 0 : a); return this; }
	        : function set(a, b) { fn.call(this, a === 0 ? 0 : a, b); return this; }
	    );
	  };
	  if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !_fails(function () {
	    new C().entries().next();
	  }))) {
	    // create collection constructor
	    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
	    _redefineAll(C.prototype, methods);
	    _meta.NEED = true;
	  } else {
	    var instance = new C();
	    // early implementations not supports chaining
	    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
	    // V8 ~  Chromium 40- weak-collections throws on primitives, but should return false
	    var THROWS_ON_PRIMITIVES = _fails(function () { instance.has(1); });
	    // most early implementations doesn't supports iterables, most modern - not close it correctly
	    var ACCEPT_ITERABLES = _iterDetect(function (iter) { new C(iter); }); // eslint-disable-line no-new
	    // for early implementations -0 and +0 not the same
	    var BUGGY_ZERO = !IS_WEAK && _fails(function () {
	      // V8 ~ Chromium 42- fails only with 5+ elements
	      var $instance = new C();
	      var index = 5;
	      while (index--) $instance[ADDER](index, index);
	      return !$instance.has(-0);
	    });
	    if (!ACCEPT_ITERABLES) {
	      C = wrapper(function (target, iterable) {
	        _anInstance(target, C, NAME);
	        var that = _inheritIfRequired(new Base(), target, C);
	        if (iterable != undefined) _forOf(iterable, IS_MAP, that[ADDER], that);
	        return that;
	      });
	      C.prototype = proto;
	      proto.constructor = C;
	    }
	    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
	      fixMethod('delete');
	      fixMethod('has');
	      IS_MAP && fixMethod('get');
	    }
	    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
	    // weak collections should not contains .clear method
	    if (IS_WEAK && proto.clear) delete proto.clear;
	  }

	  _setToStringTag(C, NAME);

	  O[NAME] = C;
	  _export(_export.G + _export.W + _export.F * (C != Base), O);

	  if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);

	  return C;
	};

	var SET = 'Set';

	// 23.2 Set Objects
	var es6_set = _collection(SET, function (get) {
	  return function Set() { return get(this, arguments.length > 0 ? arguments[0] : undefined); };
	}, {
	  // 23.2.3.1 Set.prototype.add(value)
	  add: function add(value) {
	    return _collectionStrong.def(_validateCollection(this, SET), value = value === 0 ? 0 : value, value);
	  }
	}, _collectionStrong);

	// 7.2.2 IsArray(argument)

	var _isArray = Array.isArray || function isArray(arg) {
	  return _cof(arg) == 'Array';
	};

	var SPECIES$1 = _wks('species');

	var _arraySpeciesConstructor = function (original) {
	  var C;
	  if (_isArray(original)) {
	    C = original.constructor;
	    // cross-realm fallback
	    if (typeof C == 'function' && (C === Array || _isArray(C.prototype))) C = undefined;
	    if (_isObject(C)) {
	      C = C[SPECIES$1];
	      if (C === null) C = undefined;
	    }
	  } return C === undefined ? Array : C;
	};

	// 9.4.2.3 ArraySpeciesCreate(originalArray, length)


	var _arraySpeciesCreate = function (original, length) {
	  return new (_arraySpeciesConstructor(original))(length);
	};

	// 0 -> Array#forEach
	// 1 -> Array#map
	// 2 -> Array#filter
	// 3 -> Array#some
	// 4 -> Array#every
	// 5 -> Array#find
	// 6 -> Array#findIndex





	var _arrayMethods = function (TYPE, $create) {
	  var IS_MAP = TYPE == 1;
	  var IS_FILTER = TYPE == 2;
	  var IS_SOME = TYPE == 3;
	  var IS_EVERY = TYPE == 4;
	  var IS_FIND_INDEX = TYPE == 6;
	  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
	  var create = $create || _arraySpeciesCreate;
	  return function ($this, callbackfn, that) {
	    var O = _toObject($this);
	    var self = _iobject(O);
	    var f = _ctx(callbackfn, that, 3);
	    var length = _toLength(self.length);
	    var index = 0;
	    var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
	    var val, res;
	    for (;length > index; index++) if (NO_HOLES || index in self) {
	      val = self[index];
	      res = f(val, index, O);
	      if (TYPE) {
	        if (IS_MAP) result[index] = res;   // map
	        else if (res) switch (TYPE) {
	          case 3: return true;             // some
	          case 5: return val;              // find
	          case 6: return index;            // findIndex
	          case 2: result.push(val);        // filter
	        } else if (IS_EVERY) return false; // every
	      }
	    }
	    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
	  };
	};

	// 22.1.3.8 Array.prototype.find(predicate, thisArg = undefined)

	var $find = _arrayMethods(5);
	var KEY = 'find';
	var forced = true;
	// Shouldn't skip holes
	if (KEY in []) Array(1)[KEY](function () { forced = false; });
	_export(_export.P + _export.F * forced, 'Array', {
	  find: function find(callbackfn /* , that = undefined */) {
	    return $find(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
	  }
	});
	_addToUnscopables(KEY);

	// 21.2.5.3 get RegExp.prototype.flags

	var _flags = function () {
	  var that = _anObject(this);
	  var result = '';
	  if (that.global) result += 'g';
	  if (that.ignoreCase) result += 'i';
	  if (that.multiline) result += 'm';
	  if (that.unicode) result += 'u';
	  if (that.sticky) result += 'y';
	  return result;
	};

	// 21.2.5.3 get RegExp.prototype.flags()
	if (_descriptors && /./g.flags != 'g') _objectDp.f(RegExp.prototype, 'flags', {
	  configurable: true,
	  get: _flags
	});

	var TO_STRING = 'toString';
	var $toString = /./[TO_STRING];

	var define = function (fn) {
	  _redefine(RegExp.prototype, TO_STRING, fn, true);
	};

	// 21.2.5.14 RegExp.prototype.toString()
	if (_fails(function () { return $toString.call({ source: 'a', flags: 'b' }) != '/a/b'; })) {
	  define(function toString() {
	    var R = _anObject(this);
	    return '/'.concat(R.source, '/',
	      'flags' in R ? R.flags : !_descriptors && R instanceof RegExp ? _flags.call(R) : undefined);
	  });
	// FF44- RegExp#toString has a wrong name
	} else if ($toString.name != TO_STRING) {
	  define(function toString() {
	    return $toString.call(this);
	  });
	}

	// most Object methods by ES6 should accept primitives



	var _objectSap = function (KEY, exec) {
	  var fn = (_core.Object || {})[KEY] || Object[KEY];
	  var exp = {};
	  exp[KEY] = exec(fn);
	  _export(_export.S + _export.F * _fails(function () { fn(1); }), 'Object', exp);
	};

	// 19.1.2.14 Object.keys(O)



	_objectSap('keys', function () {
	  return function keys(it) {
	    return _objectKeys(_toObject(it));
	  };
	});

	// 7.3.20 SpeciesConstructor(O, defaultConstructor)


	var SPECIES$2 = _wks('species');
	var _speciesConstructor = function (O, D) {
	  var C = _anObject(O).constructor;
	  var S;
	  return C === undefined || (S = _anObject(C)[SPECIES$2]) == undefined ? D : _aFunction(S);
	};

	// fast apply, http://jsperf.lnkit.com/fast-apply/5
	var _invoke = function (fn, args, that) {
	  var un = that === undefined;
	  switch (args.length) {
	    case 0: return un ? fn()
	                      : fn.call(that);
	    case 1: return un ? fn(args[0])
	                      : fn.call(that, args[0]);
	    case 2: return un ? fn(args[0], args[1])
	                      : fn.call(that, args[0], args[1]);
	    case 3: return un ? fn(args[0], args[1], args[2])
	                      : fn.call(that, args[0], args[1], args[2]);
	    case 4: return un ? fn(args[0], args[1], args[2], args[3])
	                      : fn.call(that, args[0], args[1], args[2], args[3]);
	  } return fn.apply(that, args);
	};

	var process = _global.process;
	var setTask = _global.setImmediate;
	var clearTask = _global.clearImmediate;
	var MessageChannel = _global.MessageChannel;
	var Dispatch = _global.Dispatch;
	var counter = 0;
	var queue = {};
	var ONREADYSTATECHANGE = 'onreadystatechange';
	var defer, channel, port;
	var run = function () {
	  var id = +this;
	  // eslint-disable-next-line no-prototype-builtins
	  if (queue.hasOwnProperty(id)) {
	    var fn = queue[id];
	    delete queue[id];
	    fn();
	  }
	};
	var listener = function (event) {
	  run.call(event.data);
	};
	// Node.js 0.9+ & IE10+ has setImmediate, otherwise:
	if (!setTask || !clearTask) {
	  setTask = function setImmediate(fn) {
	    var args = [];
	    var i = 1;
	    while (arguments.length > i) args.push(arguments[i++]);
	    queue[++counter] = function () {
	      // eslint-disable-next-line no-new-func
	      _invoke(typeof fn == 'function' ? fn : Function(fn), args);
	    };
	    defer(counter);
	    return counter;
	  };
	  clearTask = function clearImmediate(id) {
	    delete queue[id];
	  };
	  // Node.js 0.8-
	  if (_cof(process) == 'process') {
	    defer = function (id) {
	      process.nextTick(_ctx(run, id, 1));
	    };
	  // Sphere (JS game engine) Dispatch API
	  } else if (Dispatch && Dispatch.now) {
	    defer = function (id) {
	      Dispatch.now(_ctx(run, id, 1));
	    };
	  // Browsers with MessageChannel, includes WebWorkers
	  } else if (MessageChannel) {
	    channel = new MessageChannel();
	    port = channel.port2;
	    channel.port1.onmessage = listener;
	    defer = _ctx(port.postMessage, port, 1);
	  // Browsers with postMessage, skip WebWorkers
	  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'
	  } else if (_global.addEventListener && typeof postMessage == 'function' && !_global.importScripts) {
	    defer = function (id) {
	      _global.postMessage(id + '', '*');
	    };
	    _global.addEventListener('message', listener, false);
	  // IE8-
	  } else if (ONREADYSTATECHANGE in _domCreate('script')) {
	    defer = function (id) {
	      _html.appendChild(_domCreate('script'))[ONREADYSTATECHANGE] = function () {
	        _html.removeChild(this);
	        run.call(id);
	      };
	    };
	  // Rest old browsers
	  } else {
	    defer = function (id) {
	      setTimeout(_ctx(run, id, 1), 0);
	    };
	  }
	}
	var _task = {
	  set: setTask,
	  clear: clearTask
	};

	var macrotask = _task.set;
	var Observer = _global.MutationObserver || _global.WebKitMutationObserver;
	var process$1 = _global.process;
	var Promise$1 = _global.Promise;
	var isNode = _cof(process$1) == 'process';

	var _microtask = function () {
	  var head, last, notify;

	  var flush = function () {
	    var parent, fn;
	    if (isNode && (parent = process$1.domain)) parent.exit();
	    while (head) {
	      fn = head.fn;
	      head = head.next;
	      try {
	        fn();
	      } catch (e) {
	        if (head) notify();
	        else last = undefined;
	        throw e;
	      }
	    } last = undefined;
	    if (parent) parent.enter();
	  };

	  // Node.js
	  if (isNode) {
	    notify = function () {
	      process$1.nextTick(flush);
	    };
	  // browsers with MutationObserver, except iOS Safari - https://github.com/zloirock/core-js/issues/339
	  } else if (Observer && !(_global.navigator && _global.navigator.standalone)) {
	    var toggle = true;
	    var node = document.createTextNode('');
	    new Observer(flush).observe(node, { characterData: true }); // eslint-disable-line no-new
	    notify = function () {
	      node.data = toggle = !toggle;
	    };
	  // environments with maybe non-completely correct, but existent Promise
	  } else if (Promise$1 && Promise$1.resolve) {
	    // Promise.resolve without an argument throws an error in LG WebOS 2
	    var promise = Promise$1.resolve(undefined);
	    notify = function () {
	      promise.then(flush);
	    };
	  // for other environments - macrotask based on:
	  // - setImmediate
	  // - MessageChannel
	  // - window.postMessag
	  // - onreadystatechange
	  // - setTimeout
	  } else {
	    notify = function () {
	      // strange IE + webpack dev server bug - use .call(global)
	      macrotask.call(_global, flush);
	    };
	  }

	  return function (fn) {
	    var task = { fn: fn, next: undefined };
	    if (last) last.next = task;
	    if (!head) {
	      head = task;
	      notify();
	    } last = task;
	  };
	};

	// 25.4.1.5 NewPromiseCapability(C)


	function PromiseCapability(C) {
	  var resolve, reject;
	  this.promise = new C(function ($$resolve, $$reject) {
	    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
	    resolve = $$resolve;
	    reject = $$reject;
	  });
	  this.resolve = _aFunction(resolve);
	  this.reject = _aFunction(reject);
	}

	var f$4 = function (C) {
	  return new PromiseCapability(C);
	};

	var _newPromiseCapability = {
		f: f$4
	};

	var _perform = function (exec) {
	  try {
	    return { e: false, v: exec() };
	  } catch (e) {
	    return { e: true, v: e };
	  }
	};

	var navigator = _global.navigator;

	var _userAgent = navigator && navigator.userAgent || '';

	var _promiseResolve = function (C, x) {
	  _anObject(C);
	  if (_isObject(x) && x.constructor === C) return x;
	  var promiseCapability = _newPromiseCapability.f(C);
	  var resolve = promiseCapability.resolve;
	  resolve(x);
	  return promiseCapability.promise;
	};

	var task = _task.set;
	var microtask = _microtask();




	var PROMISE = 'Promise';
	var TypeError$1 = _global.TypeError;
	var process$2 = _global.process;
	var versions = process$2 && process$2.versions;
	var v8 = versions && versions.v8 || '';
	var $Promise = _global[PROMISE];
	var isNode$1 = _classof(process$2) == 'process';
	var empty = function () { /* empty */ };
	var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
	var newPromiseCapability = newGenericPromiseCapability = _newPromiseCapability.f;

	var USE_NATIVE = !!function () {
	  try {
	    // correct subclassing with @@species support
	    var promise = $Promise.resolve(1);
	    var FakePromise = (promise.constructor = {})[_wks('species')] = function (exec) {
	      exec(empty, empty);
	    };
	    // unhandled rejections tracking support, NodeJS Promise without it fails @@species test
	    return (isNode$1 || typeof PromiseRejectionEvent == 'function')
	      && promise.then(empty) instanceof FakePromise
	      // v8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables
	      // https://bugs.chromium.org/p/chromium/issues/detail?id=830565
	      // we can't detect it synchronously, so just check versions
	      && v8.indexOf('6.6') !== 0
	      && _userAgent.indexOf('Chrome/66') === -1;
	  } catch (e) { /* empty */ }
	}();

	// helpers
	var isThenable = function (it) {
	  var then;
	  return _isObject(it) && typeof (then = it.then) == 'function' ? then : false;
	};
	var notify = function (promise, isReject) {
	  if (promise._n) return;
	  promise._n = true;
	  var chain = promise._c;
	  microtask(function () {
	    var value = promise._v;
	    var ok = promise._s == 1;
	    var i = 0;
	    var run = function (reaction) {
	      var handler = ok ? reaction.ok : reaction.fail;
	      var resolve = reaction.resolve;
	      var reject = reaction.reject;
	      var domain = reaction.domain;
	      var result, then, exited;
	      try {
	        if (handler) {
	          if (!ok) {
	            if (promise._h == 2) onHandleUnhandled(promise);
	            promise._h = 1;
	          }
	          if (handler === true) result = value;
	          else {
	            if (domain) domain.enter();
	            result = handler(value); // may throw
	            if (domain) {
	              domain.exit();
	              exited = true;
	            }
	          }
	          if (result === reaction.promise) {
	            reject(TypeError$1('Promise-chain cycle'));
	          } else if (then = isThenable(result)) {
	            then.call(result, resolve, reject);
	          } else resolve(result);
	        } else reject(value);
	      } catch (e) {
	        if (domain && !exited) domain.exit();
	        reject(e);
	      }
	    };
	    while (chain.length > i) run(chain[i++]); // variable length - can't use forEach
	    promise._c = [];
	    promise._n = false;
	    if (isReject && !promise._h) onUnhandled(promise);
	  });
	};
	var onUnhandled = function (promise) {
	  task.call(_global, function () {
	    var value = promise._v;
	    var unhandled = isUnhandled(promise);
	    var result, handler, console;
	    if (unhandled) {
	      result = _perform(function () {
	        if (isNode$1) {
	          process$2.emit('unhandledRejection', value, promise);
	        } else if (handler = _global.onunhandledrejection) {
	          handler({ promise: promise, reason: value });
	        } else if ((console = _global.console) && console.error) {
	          console.error('Unhandled promise rejection', value);
	        }
	      });
	      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should
	      promise._h = isNode$1 || isUnhandled(promise) ? 2 : 1;
	    } promise._a = undefined;
	    if (unhandled && result.e) throw result.v;
	  });
	};
	var isUnhandled = function (promise) {
	  return promise._h !== 1 && (promise._a || promise._c).length === 0;
	};
	var onHandleUnhandled = function (promise) {
	  task.call(_global, function () {
	    var handler;
	    if (isNode$1) {
	      process$2.emit('rejectionHandled', promise);
	    } else if (handler = _global.onrejectionhandled) {
	      handler({ promise: promise, reason: promise._v });
	    }
	  });
	};
	var $reject = function (value) {
	  var promise = this;
	  if (promise._d) return;
	  promise._d = true;
	  promise = promise._w || promise; // unwrap
	  promise._v = value;
	  promise._s = 2;
	  if (!promise._a) promise._a = promise._c.slice();
	  notify(promise, true);
	};
	var $resolve = function (value) {
	  var promise = this;
	  var then;
	  if (promise._d) return;
	  promise._d = true;
	  promise = promise._w || promise; // unwrap
	  try {
	    if (promise === value) throw TypeError$1("Promise can't be resolved itself");
	    if (then = isThenable(value)) {
	      microtask(function () {
	        var wrapper = { _w: promise, _d: false }; // wrap
	        try {
	          then.call(value, _ctx($resolve, wrapper, 1), _ctx($reject, wrapper, 1));
	        } catch (e) {
	          $reject.call(wrapper, e);
	        }
	      });
	    } else {
	      promise._v = value;
	      promise._s = 1;
	      notify(promise, false);
	    }
	  } catch (e) {
	    $reject.call({ _w: promise, _d: false }, e); // wrap
	  }
	};

	// constructor polyfill
	if (!USE_NATIVE) {
	  // 25.4.3.1 Promise(executor)
	  $Promise = function Promise(executor) {
	    _anInstance(this, $Promise, PROMISE, '_h');
	    _aFunction(executor);
	    Internal.call(this);
	    try {
	      executor(_ctx($resolve, this, 1), _ctx($reject, this, 1));
	    } catch (err) {
	      $reject.call(this, err);
	    }
	  };
	  // eslint-disable-next-line no-unused-vars
	  Internal = function Promise(executor) {
	    this._c = [];             // <- awaiting reactions
	    this._a = undefined;      // <- checked in isUnhandled reactions
	    this._s = 0;              // <- state
	    this._d = false;          // <- done
	    this._v = undefined;      // <- value
	    this._h = 0;              // <- rejection state, 0 - default, 1 - handled, 2 - unhandled
	    this._n = false;          // <- notify
	  };
	  Internal.prototype = _redefineAll($Promise.prototype, {
	    // 25.4.5.3 Promise.prototype.then(onFulfilled, onRejected)
	    then: function then(onFulfilled, onRejected) {
	      var reaction = newPromiseCapability(_speciesConstructor(this, $Promise));
	      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
	      reaction.fail = typeof onRejected == 'function' && onRejected;
	      reaction.domain = isNode$1 ? process$2.domain : undefined;
	      this._c.push(reaction);
	      if (this._a) this._a.push(reaction);
	      if (this._s) notify(this, false);
	      return reaction.promise;
	    },
	    // 25.4.5.1 Promise.prototype.catch(onRejected)
	    'catch': function (onRejected) {
	      return this.then(undefined, onRejected);
	    }
	  });
	  OwnPromiseCapability = function () {
	    var promise = new Internal();
	    this.promise = promise;
	    this.resolve = _ctx($resolve, promise, 1);
	    this.reject = _ctx($reject, promise, 1);
	  };
	  _newPromiseCapability.f = newPromiseCapability = function (C) {
	    return C === $Promise || C === Wrapper
	      ? new OwnPromiseCapability(C)
	      : newGenericPromiseCapability(C);
	  };
	}

	_export(_export.G + _export.W + _export.F * !USE_NATIVE, { Promise: $Promise });
	_setToStringTag($Promise, PROMISE);
	_setSpecies(PROMISE);
	Wrapper = _core[PROMISE];

	// statics
	_export(_export.S + _export.F * !USE_NATIVE, PROMISE, {
	  // 25.4.4.5 Promise.reject(r)
	  reject: function reject(r) {
	    var capability = newPromiseCapability(this);
	    var $$reject = capability.reject;
	    $$reject(r);
	    return capability.promise;
	  }
	});
	_export(_export.S + _export.F * (_library || !USE_NATIVE), PROMISE, {
	  // 25.4.4.6 Promise.resolve(x)
	  resolve: function resolve(x) {
	    return _promiseResolve(_library && this === Wrapper ? $Promise : this, x);
	  }
	});
	_export(_export.S + _export.F * !(USE_NATIVE && _iterDetect(function (iter) {
	  $Promise.all(iter)['catch'](empty);
	})), PROMISE, {
	  // 25.4.4.1 Promise.all(iterable)
	  all: function all(iterable) {
	    var C = this;
	    var capability = newPromiseCapability(C);
	    var resolve = capability.resolve;
	    var reject = capability.reject;
	    var result = _perform(function () {
	      var values = [];
	      var index = 0;
	      var remaining = 1;
	      _forOf(iterable, false, function (promise) {
	        var $index = index++;
	        var alreadyCalled = false;
	        values.push(undefined);
	        remaining++;
	        C.resolve(promise).then(function (value) {
	          if (alreadyCalled) return;
	          alreadyCalled = true;
	          values[$index] = value;
	          --remaining || resolve(values);
	        }, reject);
	      });
	      --remaining || resolve(values);
	    });
	    if (result.e) reject(result.v);
	    return capability.promise;
	  },
	  // 25.4.4.4 Promise.race(iterable)
	  race: function race(iterable) {
	    var C = this;
	    var capability = newPromiseCapability(C);
	    var reject = capability.reject;
	    var result = _perform(function () {
	      _forOf(iterable, false, function (promise) {
	        C.resolve(promise).then(capability.resolve, reject);
	      });
	    });
	    if (result.e) reject(result.v);
	    return capability.promise;
	  }
	});

	// 22.1.3.4 Array.prototype.entries()
	// 22.1.3.13 Array.prototype.keys()
	// 22.1.3.29 Array.prototype.values()
	// 22.1.3.30 Array.prototype[@@iterator]()
	var es6_array_iterator = _iterDefine(Array, 'Array', function (iterated, kind) {
	  this._t = _toIobject(iterated); // target
	  this._i = 0;                   // next index
	  this._k = kind;                // kind
	// 22.1.5.2.1 %ArrayIteratorPrototype%.next()
	}, function () {
	  var O = this._t;
	  var kind = this._k;
	  var index = this._i++;
	  if (!O || index >= O.length) {
	    this._t = undefined;
	    return _iterStep(1);
	  }
	  if (kind == 'keys') return _iterStep(0, index);
	  if (kind == 'values') return _iterStep(0, O[index]);
	  return _iterStep(0, [index, O[index]]);
	}, 'values');

	// argumentsList[@@iterator] is %ArrayProto_values% (9.4.4.6, 9.4.4.7)
	_iterators.Arguments = _iterators.Array;

	_addToUnscopables('keys');
	_addToUnscopables('values');
	_addToUnscopables('entries');

	// true  -> String#at
	// false -> String#codePointAt
	var _stringAt = function (TO_STRING) {
	  return function (that, pos) {
	    var s = String(_defined(that));
	    var i = _toInteger(pos);
	    var l = s.length;
	    var a, b;
	    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
	    a = s.charCodeAt(i);
	    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff
	      ? TO_STRING ? s.charAt(i) : a
	      : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
	  };
	};

	var $at = _stringAt(true);

	// 21.1.3.27 String.prototype[@@iterator]()
	_iterDefine(String, 'String', function (iterated) {
	  this._t = String(iterated); // target
	  this._i = 0;                // next index
	// 21.1.5.2.1 %StringIteratorPrototype%.next()
	}, function () {
	  var O = this._t;
	  var index = this._i;
	  var point;
	  if (index >= O.length) return { value: undefined, done: true };
	  point = $at(O, index);
	  this._i += point.length;
	  return { value: point, done: false };
	});

	var ITERATOR$4 = _wks('iterator');
	var TO_STRING_TAG = _wks('toStringTag');
	var ArrayValues = _iterators.Array;

	var DOMIterables = {
	  CSSRuleList: true, // TODO: Not spec compliant, should be false.
	  CSSStyleDeclaration: false,
	  CSSValueList: false,
	  ClientRectList: false,
	  DOMRectList: false,
	  DOMStringList: false,
	  DOMTokenList: true,
	  DataTransferItemList: false,
	  FileList: false,
	  HTMLAllCollection: false,
	  HTMLCollection: false,
	  HTMLFormElement: false,
	  HTMLSelectElement: false,
	  MediaList: true, // TODO: Not spec compliant, should be false.
	  MimeTypeArray: false,
	  NamedNodeMap: false,
	  NodeList: true,
	  PaintRequestList: false,
	  Plugin: false,
	  PluginArray: false,
	  SVGLengthList: false,
	  SVGNumberList: false,
	  SVGPathSegList: false,
	  SVGPointList: false,
	  SVGStringList: false,
	  SVGTransformList: false,
	  SourceBufferList: false,
	  StyleSheetList: true, // TODO: Not spec compliant, should be false.
	  TextTrackCueList: false,
	  TextTrackList: false,
	  TouchList: false
	};

	for (var collections = _objectKeys(DOMIterables), i = 0; i < collections.length; i++) {
	  var NAME = collections[i];
	  var explicit = DOMIterables[NAME];
	  var Collection = _global[NAME];
	  var proto = Collection && Collection.prototype;
	  var key;
	  if (proto) {
	    if (!proto[ITERATOR$4]) _hide(proto, ITERATOR$4, ArrayValues);
	    if (!proto[TO_STRING_TAG]) _hide(proto, TO_STRING_TAG, NAME);
	    _iterators[NAME] = ArrayValues;
	    if (explicit) for (key in es6_array_iterator) if (!proto[key]) _redefine(proto, key, es6_array_iterator[key], true);
	  }
	}

	var runtime = createCommonjsModule(function (module) {
	/**
	 * Copyright (c) 2014-present, Facebook, Inc.
	 *
	 * This source code is licensed under the MIT license found in the
	 * LICENSE file in the root directory of this source tree.
	 */

	!(function(global) {

	  var Op = Object.prototype;
	  var hasOwn = Op.hasOwnProperty;
	  var undefined; // More compressible than void 0.
	  var $Symbol = typeof Symbol === "function" ? Symbol : {};
	  var iteratorSymbol = $Symbol.iterator || "@@iterator";
	  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
	  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";
	  var runtime = global.regeneratorRuntime;
	  if (runtime) {
	    {
	      // If regeneratorRuntime is defined globally and we're in a module,
	      // make the exports object identical to regeneratorRuntime.
	      module.exports = runtime;
	    }
	    // Don't bother evaluating the rest of this file if the runtime was
	    // already defined globally.
	    return;
	  }

	  // Define the runtime globally (as expected by generated code) as either
	  // module.exports (if we're in a module) or a new, empty object.
	  runtime = global.regeneratorRuntime = module.exports;

	  function wrap(innerFn, outerFn, self, tryLocsList) {
	    // If outerFn provided and outerFn.prototype is a Generator, then outerFn.prototype instanceof Generator.
	    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
	    var generator = Object.create(protoGenerator.prototype);
	    var context = new Context(tryLocsList || []);

	    // The ._invoke method unifies the implementations of the .next,
	    // .throw, and .return methods.
	    generator._invoke = makeInvokeMethod(innerFn, self, context);

	    return generator;
	  }
	  runtime.wrap = wrap;

	  // Try/catch helper to minimize deoptimizations. Returns a completion
	  // record like context.tryEntries[i].completion. This interface could
	  // have been (and was previously) designed to take a closure to be
	  // invoked without arguments, but in all the cases we care about we
	  // already have an existing method we want to call, so there's no need
	  // to create a new function object. We can even get away with assuming
	  // the method takes exactly one argument, since that happens to be true
	  // in every case, so we don't have to touch the arguments object. The
	  // only additional allocation required is the completion record, which
	  // has a stable shape and so hopefully should be cheap to allocate.
	  function tryCatch(fn, obj, arg) {
	    try {
	      return { type: "normal", arg: fn.call(obj, arg) };
	    } catch (err) {
	      return { type: "throw", arg: err };
	    }
	  }

	  var GenStateSuspendedStart = "suspendedStart";
	  var GenStateSuspendedYield = "suspendedYield";
	  var GenStateExecuting = "executing";
	  var GenStateCompleted = "completed";

	  // Returning this object from the innerFn has the same effect as
	  // breaking out of the dispatch switch statement.
	  var ContinueSentinel = {};

	  // Dummy constructor functions that we use as the .constructor and
	  // .constructor.prototype properties for functions that return Generator
	  // objects. For full spec compliance, you may wish to configure your
	  // minifier not to mangle the names of these two functions.
	  function Generator() {}
	  function GeneratorFunction() {}
	  function GeneratorFunctionPrototype() {}

	  // This is a polyfill for %IteratorPrototype% for environments that
	  // don't natively support it.
	  var IteratorPrototype = {};
	  IteratorPrototype[iteratorSymbol] = function () {
	    return this;
	  };

	  var getProto = Object.getPrototypeOf;
	  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));
	  if (NativeIteratorPrototype &&
	      NativeIteratorPrototype !== Op &&
	      hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
	    // This environment has a native %IteratorPrototype%; use it instead
	    // of the polyfill.
	    IteratorPrototype = NativeIteratorPrototype;
	  }

	  var Gp = GeneratorFunctionPrototype.prototype =
	    Generator.prototype = Object.create(IteratorPrototype);
	  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
	  GeneratorFunctionPrototype.constructor = GeneratorFunction;
	  GeneratorFunctionPrototype[toStringTagSymbol] =
	    GeneratorFunction.displayName = "GeneratorFunction";

	  // Helper for defining the .next, .throw, and .return methods of the
	  // Iterator interface in terms of a single ._invoke method.
	  function defineIteratorMethods(prototype) {
	    ["next", "throw", "return"].forEach(function(method) {
	      prototype[method] = function(arg) {
	        return this._invoke(method, arg);
	      };
	    });
	  }

	  runtime.isGeneratorFunction = function(genFun) {
	    var ctor = typeof genFun === "function" && genFun.constructor;
	    return ctor
	      ? ctor === GeneratorFunction ||
	        // For the native GeneratorFunction constructor, the best we can
	        // do is to check its .name property.
	        (ctor.displayName || ctor.name) === "GeneratorFunction"
	      : false;
	  };

	  runtime.mark = function(genFun) {
	    if (Object.setPrototypeOf) {
	      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
	    } else {
	      genFun.__proto__ = GeneratorFunctionPrototype;
	      if (!(toStringTagSymbol in genFun)) {
	        genFun[toStringTagSymbol] = "GeneratorFunction";
	      }
	    }
	    genFun.prototype = Object.create(Gp);
	    return genFun;
	  };

	  // Within the body of any async function, `await x` is transformed to
	  // `yield regeneratorRuntime.awrap(x)`, so that the runtime can test
	  // `hasOwn.call(value, "__await")` to determine if the yielded value is
	  // meant to be awaited.
	  runtime.awrap = function(arg) {
	    return { __await: arg };
	  };

	  function AsyncIterator(generator) {
	    function invoke(method, arg, resolve, reject) {
	      var record = tryCatch(generator[method], generator, arg);
	      if (record.type === "throw") {
	        reject(record.arg);
	      } else {
	        var result = record.arg;
	        var value = result.value;
	        if (value &&
	            typeof value === "object" &&
	            hasOwn.call(value, "__await")) {
	          return Promise.resolve(value.__await).then(function(value) {
	            invoke("next", value, resolve, reject);
	          }, function(err) {
	            invoke("throw", err, resolve, reject);
	          });
	        }

	        return Promise.resolve(value).then(function(unwrapped) {
	          // When a yielded Promise is resolved, its final value becomes
	          // the .value of the Promise<{value,done}> result for the
	          // current iteration. If the Promise is rejected, however, the
	          // result for this iteration will be rejected with the same
	          // reason. Note that rejections of yielded Promises are not
	          // thrown back into the generator function, as is the case
	          // when an awaited Promise is rejected. This difference in
	          // behavior between yield and await is important, because it
	          // allows the consumer to decide what to do with the yielded
	          // rejection (swallow it and continue, manually .throw it back
	          // into the generator, abandon iteration, whatever). With
	          // await, by contrast, there is no opportunity to examine the
	          // rejection reason outside the generator function, so the
	          // only option is to throw it from the await expression, and
	          // let the generator function handle the exception.
	          result.value = unwrapped;
	          resolve(result);
	        }, reject);
	      }
	    }

	    var previousPromise;

	    function enqueue(method, arg) {
	      function callInvokeWithMethodAndArg() {
	        return new Promise(function(resolve, reject) {
	          invoke(method, arg, resolve, reject);
	        });
	      }

	      return previousPromise =
	        // If enqueue has been called before, then we want to wait until
	        // all previous Promises have been resolved before calling invoke,
	        // so that results are always delivered in the correct order. If
	        // enqueue has not been called before, then it is important to
	        // call invoke immediately, without waiting on a callback to fire,
	        // so that the async generator function has the opportunity to do
	        // any necessary setup in a predictable way. This predictability
	        // is why the Promise constructor synchronously invokes its
	        // executor callback, and why async functions synchronously
	        // execute code before the first await. Since we implement simple
	        // async functions in terms of async generators, it is especially
	        // important to get this right, even though it requires care.
	        previousPromise ? previousPromise.then(
	          callInvokeWithMethodAndArg,
	          // Avoid propagating failures to Promises returned by later
	          // invocations of the iterator.
	          callInvokeWithMethodAndArg
	        ) : callInvokeWithMethodAndArg();
	    }

	    // Define the unified helper method that is used to implement .next,
	    // .throw, and .return (see defineIteratorMethods).
	    this._invoke = enqueue;
	  }

	  defineIteratorMethods(AsyncIterator.prototype);
	  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
	    return this;
	  };
	  runtime.AsyncIterator = AsyncIterator;

	  // Note that simple async functions are implemented on top of
	  // AsyncIterator objects; they just return a Promise for the value of
	  // the final result produced by the iterator.
	  runtime.async = function(innerFn, outerFn, self, tryLocsList) {
	    var iter = new AsyncIterator(
	      wrap(innerFn, outerFn, self, tryLocsList)
	    );

	    return runtime.isGeneratorFunction(outerFn)
	      ? iter // If outerFn is a generator, return the full iterator.
	      : iter.next().then(function(result) {
	          return result.done ? result.value : iter.next();
	        });
	  };

	  function makeInvokeMethod(innerFn, self, context) {
	    var state = GenStateSuspendedStart;

	    return function invoke(method, arg) {
	      if (state === GenStateExecuting) {
	        throw new Error("Generator is already running");
	      }

	      if (state === GenStateCompleted) {
	        if (method === "throw") {
	          throw arg;
	        }

	        // Be forgiving, per 25.3.3.3.3 of the spec:
	        // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-generatorresume
	        return doneResult();
	      }

	      context.method = method;
	      context.arg = arg;

	      while (true) {
	        var delegate = context.delegate;
	        if (delegate) {
	          var delegateResult = maybeInvokeDelegate(delegate, context);
	          if (delegateResult) {
	            if (delegateResult === ContinueSentinel) continue;
	            return delegateResult;
	          }
	        }

	        if (context.method === "next") {
	          // Setting context._sent for legacy support of Babel's
	          // function.sent implementation.
	          context.sent = context._sent = context.arg;

	        } else if (context.method === "throw") {
	          if (state === GenStateSuspendedStart) {
	            state = GenStateCompleted;
	            throw context.arg;
	          }

	          context.dispatchException(context.arg);

	        } else if (context.method === "return") {
	          context.abrupt("return", context.arg);
	        }

	        state = GenStateExecuting;

	        var record = tryCatch(innerFn, self, context);
	        if (record.type === "normal") {
	          // If an exception is thrown from innerFn, we leave state ===
	          // GenStateExecuting and loop back for another invocation.
	          state = context.done
	            ? GenStateCompleted
	            : GenStateSuspendedYield;

	          if (record.arg === ContinueSentinel) {
	            continue;
	          }

	          return {
	            value: record.arg,
	            done: context.done
	          };

	        } else if (record.type === "throw") {
	          state = GenStateCompleted;
	          // Dispatch the exception by looping back around to the
	          // context.dispatchException(context.arg) call above.
	          context.method = "throw";
	          context.arg = record.arg;
	        }
	      }
	    };
	  }

	  // Call delegate.iterator[context.method](context.arg) and handle the
	  // result, either by returning a { value, done } result from the
	  // delegate iterator, or by modifying context.method and context.arg,
	  // setting context.delegate to null, and returning the ContinueSentinel.
	  function maybeInvokeDelegate(delegate, context) {
	    var method = delegate.iterator[context.method];
	    if (method === undefined) {
	      // A .throw or .return when the delegate iterator has no .throw
	      // method always terminates the yield* loop.
	      context.delegate = null;

	      if (context.method === "throw") {
	        if (delegate.iterator.return) {
	          // If the delegate iterator has a return method, give it a
	          // chance to clean up.
	          context.method = "return";
	          context.arg = undefined;
	          maybeInvokeDelegate(delegate, context);

	          if (context.method === "throw") {
	            // If maybeInvokeDelegate(context) changed context.method from
	            // "return" to "throw", let that override the TypeError below.
	            return ContinueSentinel;
	          }
	        }

	        context.method = "throw";
	        context.arg = new TypeError(
	          "The iterator does not provide a 'throw' method");
	      }

	      return ContinueSentinel;
	    }

	    var record = tryCatch(method, delegate.iterator, context.arg);

	    if (record.type === "throw") {
	      context.method = "throw";
	      context.arg = record.arg;
	      context.delegate = null;
	      return ContinueSentinel;
	    }

	    var info = record.arg;

	    if (! info) {
	      context.method = "throw";
	      context.arg = new TypeError("iterator result is not an object");
	      context.delegate = null;
	      return ContinueSentinel;
	    }

	    if (info.done) {
	      // Assign the result of the finished delegate to the temporary
	      // variable specified by delegate.resultName (see delegateYield).
	      context[delegate.resultName] = info.value;

	      // Resume execution at the desired location (see delegateYield).
	      context.next = delegate.nextLoc;

	      // If context.method was "throw" but the delegate handled the
	      // exception, let the outer generator proceed normally. If
	      // context.method was "next", forget context.arg since it has been
	      // "consumed" by the delegate iterator. If context.method was
	      // "return", allow the original .return call to continue in the
	      // outer generator.
	      if (context.method !== "return") {
	        context.method = "next";
	        context.arg = undefined;
	      }

	    } else {
	      // Re-yield the result returned by the delegate method.
	      return info;
	    }

	    // The delegate iterator is finished, so forget it and continue with
	    // the outer generator.
	    context.delegate = null;
	    return ContinueSentinel;
	  }

	  // Define Generator.prototype.{next,throw,return} in terms of the
	  // unified ._invoke helper method.
	  defineIteratorMethods(Gp);

	  Gp[toStringTagSymbol] = "Generator";

	  // A Generator should always return itself as the iterator object when the
	  // @@iterator function is called on it. Some browsers' implementations of the
	  // iterator prototype chain incorrectly implement this, causing the Generator
	  // object to not be returned from this call. This ensures that doesn't happen.
	  // See https://github.com/facebook/regenerator/issues/274 for more details.
	  Gp[iteratorSymbol] = function() {
	    return this;
	  };

	  Gp.toString = function() {
	    return "[object Generator]";
	  };

	  function pushTryEntry(locs) {
	    var entry = { tryLoc: locs[0] };

	    if (1 in locs) {
	      entry.catchLoc = locs[1];
	    }

	    if (2 in locs) {
	      entry.finallyLoc = locs[2];
	      entry.afterLoc = locs[3];
	    }

	    this.tryEntries.push(entry);
	  }

	  function resetTryEntry(entry) {
	    var record = entry.completion || {};
	    record.type = "normal";
	    delete record.arg;
	    entry.completion = record;
	  }

	  function Context(tryLocsList) {
	    // The root entry object (effectively a try statement without a catch
	    // or a finally block) gives us a place to store values thrown from
	    // locations where there is no enclosing try statement.
	    this.tryEntries = [{ tryLoc: "root" }];
	    tryLocsList.forEach(pushTryEntry, this);
	    this.reset(true);
	  }

	  runtime.keys = function(object) {
	    var keys = [];
	    for (var key in object) {
	      keys.push(key);
	    }
	    keys.reverse();

	    // Rather than returning an object with a next method, we keep
	    // things simple and return the next function itself.
	    return function next() {
	      while (keys.length) {
	        var key = keys.pop();
	        if (key in object) {
	          next.value = key;
	          next.done = false;
	          return next;
	        }
	      }

	      // To avoid creating an additional object, we just hang the .value
	      // and .done properties off the next function object itself. This
	      // also ensures that the minifier will not anonymize the function.
	      next.done = true;
	      return next;
	    };
	  };

	  function values(iterable) {
	    if (iterable) {
	      var iteratorMethod = iterable[iteratorSymbol];
	      if (iteratorMethod) {
	        return iteratorMethod.call(iterable);
	      }

	      if (typeof iterable.next === "function") {
	        return iterable;
	      }

	      if (!isNaN(iterable.length)) {
	        var i = -1, next = function next() {
	          while (++i < iterable.length) {
	            if (hasOwn.call(iterable, i)) {
	              next.value = iterable[i];
	              next.done = false;
	              return next;
	            }
	          }

	          next.value = undefined;
	          next.done = true;

	          return next;
	        };

	        return next.next = next;
	      }
	    }

	    // Return an iterator with no values.
	    return { next: doneResult };
	  }
	  runtime.values = values;

	  function doneResult() {
	    return { value: undefined, done: true };
	  }

	  Context.prototype = {
	    constructor: Context,

	    reset: function(skipTempReset) {
	      this.prev = 0;
	      this.next = 0;
	      // Resetting context._sent for legacy support of Babel's
	      // function.sent implementation.
	      this.sent = this._sent = undefined;
	      this.done = false;
	      this.delegate = null;

	      this.method = "next";
	      this.arg = undefined;

	      this.tryEntries.forEach(resetTryEntry);

	      if (!skipTempReset) {
	        for (var name in this) {
	          // Not sure about the optimal order of these conditions:
	          if (name.charAt(0) === "t" &&
	              hasOwn.call(this, name) &&
	              !isNaN(+name.slice(1))) {
	            this[name] = undefined;
	          }
	        }
	      }
	    },

	    stop: function() {
	      this.done = true;

	      var rootEntry = this.tryEntries[0];
	      var rootRecord = rootEntry.completion;
	      if (rootRecord.type === "throw") {
	        throw rootRecord.arg;
	      }

	      return this.rval;
	    },

	    dispatchException: function(exception) {
	      if (this.done) {
	        throw exception;
	      }

	      var context = this;
	      function handle(loc, caught) {
	        record.type = "throw";
	        record.arg = exception;
	        context.next = loc;

	        if (caught) {
	          // If the dispatched exception was caught by a catch block,
	          // then let that catch block handle the exception normally.
	          context.method = "next";
	          context.arg = undefined;
	        }

	        return !! caught;
	      }

	      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
	        var entry = this.tryEntries[i];
	        var record = entry.completion;

	        if (entry.tryLoc === "root") {
	          // Exception thrown outside of any try block that could handle
	          // it, so set the completion value of the entire function to
	          // throw the exception.
	          return handle("end");
	        }

	        if (entry.tryLoc <= this.prev) {
	          var hasCatch = hasOwn.call(entry, "catchLoc");
	          var hasFinally = hasOwn.call(entry, "finallyLoc");

	          if (hasCatch && hasFinally) {
	            if (this.prev < entry.catchLoc) {
	              return handle(entry.catchLoc, true);
	            } else if (this.prev < entry.finallyLoc) {
	              return handle(entry.finallyLoc);
	            }

	          } else if (hasCatch) {
	            if (this.prev < entry.catchLoc) {
	              return handle(entry.catchLoc, true);
	            }

	          } else if (hasFinally) {
	            if (this.prev < entry.finallyLoc) {
	              return handle(entry.finallyLoc);
	            }

	          } else {
	            throw new Error("try statement without catch or finally");
	          }
	        }
	      }
	    },

	    abrupt: function(type, arg) {
	      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
	        var entry = this.tryEntries[i];
	        if (entry.tryLoc <= this.prev &&
	            hasOwn.call(entry, "finallyLoc") &&
	            this.prev < entry.finallyLoc) {
	          var finallyEntry = entry;
	          break;
	        }
	      }

	      if (finallyEntry &&
	          (type === "break" ||
	           type === "continue") &&
	          finallyEntry.tryLoc <= arg &&
	          arg <= finallyEntry.finallyLoc) {
	        // Ignore the finally entry if control is not jumping to a
	        // location outside the try/catch block.
	        finallyEntry = null;
	      }

	      var record = finallyEntry ? finallyEntry.completion : {};
	      record.type = type;
	      record.arg = arg;

	      if (finallyEntry) {
	        this.method = "next";
	        this.next = finallyEntry.finallyLoc;
	        return ContinueSentinel;
	      }

	      return this.complete(record);
	    },

	    complete: function(record, afterLoc) {
	      if (record.type === "throw") {
	        throw record.arg;
	      }

	      if (record.type === "break" ||
	          record.type === "continue") {
	        this.next = record.arg;
	      } else if (record.type === "return") {
	        this.rval = this.arg = record.arg;
	        this.method = "return";
	        this.next = "end";
	      } else if (record.type === "normal" && afterLoc) {
	        this.next = afterLoc;
	      }

	      return ContinueSentinel;
	    },

	    finish: function(finallyLoc) {
	      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
	        var entry = this.tryEntries[i];
	        if (entry.finallyLoc === finallyLoc) {
	          this.complete(entry.completion, entry.afterLoc);
	          resetTryEntry(entry);
	          return ContinueSentinel;
	        }
	      }
	    },

	    "catch": function(tryLoc) {
	      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
	        var entry = this.tryEntries[i];
	        if (entry.tryLoc === tryLoc) {
	          var record = entry.completion;
	          if (record.type === "throw") {
	            var thrown = record.arg;
	            resetTryEntry(entry);
	          }
	          return thrown;
	        }
	      }

	      // The context.catch method must only be called with a location
	      // argument that corresponds to a known catch block.
	      throw new Error("illegal catch attempt");
	    },

	    delegateYield: function(iterable, resultName, nextLoc) {
	      this.delegate = {
	        iterator: values(iterable),
	        resultName: resultName,
	        nextLoc: nextLoc
	      };

	      if (this.method === "next") {
	        // Deliberately forget the last sent value so that we don't
	        // accidentally pass it on to the delegate.
	        this.arg = undefined;
	      }

	      return ContinueSentinel;
	    }
	  };
	})(
	  // In sloppy mode, unbound `this` refers to the global object, fallback to
	  // Function constructor if we're in global strict mode. That is sadly a form
	  // of indirect eval which violates Content Security Policy.
	  (function() { return this })() || Function("return this")()
	);
	});

	/**
	 * @class Batch
	 * @namespace Daux.Core
	 */
	var Batch =
	/*#__PURE__*/
	function () {
	  /**
	   * @param {Service.Store} store
	   */
	  function Batch(store) {
	    _classCallCheck(this, Batch);

	    this.store = store;
	    this.queues = [];
	  }
	  /**
	   * @param {string} type
	   * @param {Array.<Object>} records
	   * @function
	   */


	  _createClass(Batch, [{
	    key: "set",
	    value: function set(type, records) {
	      this.queues.push({
	        operation: 'set',
	        data: {
	          type: type,
	          records: records
	        }
	      });
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @param {Object} attribute
	     * @function
	     */

	  }, {
	    key: "update",
	    value: function update(type, id, attribute) {
	      this.queues.push({
	        operation: 'update',
	        data: {
	          type: type,
	          id: id,
	          attribute: attribute
	        }
	      });
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @function
	     */

	  }, {
	    key: "delete",
	    value: function _delete(type, id) {
	      this.queues.push({
	        operation: 'delete',
	        data: {
	          type: type,
	          id: id
	        }
	      });
	    }
	    /**
	     * @param {Object} [option]
	     * @function
	     */

	  }, {
	    key: "commit",
	    value: function commit(option) {
	      var _this = this;

	      this.queues.forEach(function (_ref, index) {
	        var operation = _ref.operation,
	            data = _ref.data;
	        var finalOption = option;

	        if (!finalOption) {
	          var isBackgroundOperation = index !== _this.queues.length - 1;
	          finalOption = {
	            isBackgroundOperation: isBackgroundOperation
	          };
	        }

	        if (operation === 'set') {
	          _this.store.set(data.type, data.records, finalOption);
	        } else if (operation === 'update') {
	          _this.store.update(data.type, data.id, data.attribute, finalOption);
	        } else if (operation === 'delete') {
	          _this.store.delete(data.type, data.id, finalOption);
	        }
	      });
	      this.queues = [];
	    }
	  }]);

	  return Batch;
	}();

	/**
	 * @param {Object} model
	 * @param {string} type
	 * @param {string} attribute
	 * @return {string} Cardinality
	 * @function
	 */
	function getCardinality(model, type, attribute) {
	  var meta = model[type].relationship[attribute];

	  if (meta.kind === 'belongsTo') {
	    if (meta.inverse) {
	      var inverseMeta = model[meta.type].relationship[meta.inverse];

	      if (inverseMeta.kind === 'belongsTo') {
	        return 'oneToOne';
	      }

	      return 'oneToMany';
	    }

	    return 'oneToNone';
	  }

	  if (meta.inverse) {
	    var _inverseMeta = model[meta.type].relationship[meta.inverse];

	    if (_inverseMeta.kind === 'belongsTo') {
	      return 'oneToMany';
	    }

	    return 'manyToMany';
	  }

	  return 'manyToNone';
	}

	/**
	 * @param {Daux.Core.Model} model
	 * @return {Object} Default record
	 */
	function getDefaultRecord(model) {
	  var defaultRecord = {};
	  model.attributes.forEach(function (attribute) {
	    defaultRecord[attribute] = null;
	  });
	  Object.keys(model.relationship).forEach(function (relationshipKey) {
	    if (model.relationship[relationshipKey].kind === 'belongsTo') {
	      defaultRecord[relationshipKey] = null;
	    } else {
	      defaultRecord[relationshipKey] = [];
	    }
	  });
	  return defaultRecord;
	}

	/**
	 * @param {Object} record
	 * @return {string|null} Record ID
	 * @function
	 */
	function normalizeBelongsTo(record) {
	  if (typeof record === 'string' || record === null) {
	    return record;
	  }

	  if (_typeof(record) === 'object') {
	    return record.id;
	  }

	  return null;
	}
	/**
	 * @param {Array.<Object>} records
	 * @return {Array.<string>} Record IDs
	 * @function
	 */


	function normalizeHasMany(records) {
	  if (Array.isArray(records)) {
	    return records.map(function (record) {
	      if (typeof record === 'string') {
	        return record;
	      }

	      return record.id;
	    });
	  }

	  return [];
	}
	/**
	 * @param {Daux.Core.Model} model
	 * @param {Object} record
	 * @return {Object} Normalized record
	 */


	function normalize(model, record) {
	  var normalizedRecord = {
	    id: record.id
	  };
	  model.attributes.forEach(function (attribute) {
	    normalizedRecord[attribute] = Object.prototype.hasOwnProperty.call(record, attribute) ? record[attribute] : null;
	  });
	  Object.keys(model.relationship).forEach(function (relationshipKey) {
	    if (model.relationship[relationshipKey].kind === 'belongsTo') {
	      normalizedRecord[relationshipKey] = normalizeBelongsTo(record[relationshipKey]);
	    } else {
	      normalizedRecord[relationshipKey] = normalizeHasMany(record[relationshipKey]);
	    }
	  });
	  return normalizedRecord;
	}

	/**
	 * @class Store
	 * @namespace Daux.Core
	 */

	var Store =
	/*#__PURE__*/
	function () {
	  /**
	   * @callback fetch
	   * @return {Promise} Resolves with the records
	   */

	  /**
	   * @param {Object} model
	   * @function
	   */
	  function Store(model) {
	    _classCallCheck(this, Store);

	    this.model = model;
	    this.state = this.buildInitialState();
	    this.subscription = {};
	  }
	  /**
	   * @param {string} type
	   * @param {Object} record
	   * @param {Object} [option={}]
	   * @function
	   */


	  _createClass(Store, [{
	    key: "set",
	    value: function set(type, record) {
	      var option = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

	      if (record.id) {
	        var modelForType = this.model[type];
	        var deserializedRecord = option.isDeserialized ? record : modelForType.deserialize(record);

	        if (deserializedRecord) {
	          var normalizedRecord = normalize(modelForType, deserializedRecord);
	          this.state[type].data[normalizedRecord.id] = normalizedRecord;
	          this.syncAddedRelationships(type, deserializedRecord);

	          if (!option.isBackgroundOperation) {
	            this.triggerSubscriptions();
	          }
	        }
	      } else {
	        throw new Error('Record to set has no ID');
	      }
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @param {Object} attribute
	     * @param {Object} [option={}]
	     * @function
	     */

	  }, {
	    key: "update",
	    value: function update(type, id, attribute) {
	      var option = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
	      var cachedRecord = this.getStateForRecord(type, id);

	      if (cachedRecord) {
	        var modelForType = this.model[type];
	        var updatedRecord = modelForType.deserialize(Object.assign({}, cachedRecord, attribute, {
	          id: id
	        }));
	        this.set(type, updatedRecord, {
	          isBackgroundOperation: true,
	          isDeserialized: true
	        });
	        this.syncRemovedRelationships(type, updatedRecord, cachedRecord);

	        if (!option.isBackgroundOperation) {
	          this.triggerSubscriptions();
	        }
	      } else {
	        throw new Error('Record doesn\'t exist');
	      }
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @param {Object} [option={}]
	     * @function
	     */

	  }, {
	    key: "delete",
	    value: function _delete(type, id) {
	      var option = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
	      var cachedRecord = this.getStateForRecord(type, id);

	      if (cachedRecord) {
	        var modelForType = this.model[type];
	        var defaultRecord = getDefaultRecord(modelForType, type);
	        this.update(type, id, defaultRecord, {
	          isBackgroundOperation: true
	        });
	        delete this.state[type].data[id];

	        if (!option.isBackgroundOperation) {
	          this.triggerSubscriptions();
	        }
	      } else {
	        throw new Error('Record doesn\'t exist');
	      }
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @param {option} [option={}]
	     * @return {Object} Record
	     * @function
	     */

	  }, {
	    key: "get",
	    value: function () {
	      var _get$$1 = _asyncToGenerator(
	      /*#__PURE__*/
	      regeneratorRuntime.mark(function _callee(type, id) {
	        var option,
	            record,
	            recordState,
	            _args = arguments;
	        return regeneratorRuntime.wrap(function _callee$(_context) {
	          while (1) {
	            switch (_context.prev = _context.next) {
	              case 0:
	                option = _args.length > 2 && _args[2] !== undefined ? _args[2] : {};

	                if (!(!this.isRecordAttributePopulated(type, id) && option.fetch)) {
	                  _context.next = 8;
	                  break;
	                }

	                _context.next = 4;
	                return option.fetch();

	              case 4:
	                record = _context.sent;

	                if (record) {
	                  _context.next = 7;
	                  break;
	                }

	                return _context.abrupt("return", null);

	              case 7:
	                this.set(type, record, {
	                  isBackgroundOperation: true
	                });

	              case 8:
	                recordState = this.getStateForRecord(type, id);

	                if (!(recordState && option.include)) {
	                  _context.next = 12;
	                  break;
	                }

	                _context.next = 12;
	                return this.includeRelationships(type, recordState, option);

	              case 12:
	                return _context.abrupt("return", this.getCachedRecord(type, id));

	              case 13:
	              case "end":
	                return _context.stop();
	            }
	          }
	        }, _callee, this);
	      }));

	      return function get(_x, _x2) {
	        return _get$$1.apply(this, arguments);
	      };
	    }()
	    /**
	     * @param {string} type
	     * @param {option} [option={}]
	     * @return {Array.<Object>} Records
	     * @function
	     */

	  }, {
	    key: "getAll",
	    value: function () {
	      var _getAll = _asyncToGenerator(
	      /*#__PURE__*/
	      regeneratorRuntime.mark(function _callee2(type) {
	        var _this = this;

	        var option,
	            records,
	            _args2 = arguments;
	        return regeneratorRuntime.wrap(function _callee2$(_context2) {
	          while (1) {
	            switch (_context2.prev = _context2.next) {
	              case 0:
	                option = _args2.length > 1 && _args2[1] !== undefined ? _args2[1] : {};

	                if (!(option.fetch && !this.state[type].isDataComplete)) {
	                  _context2.next = 10;
	                  break;
	                }

	                _context2.next = 4;
	                return option.fetch();

	              case 4:
	                _context2.t0 = _context2.sent;

	                if (_context2.t0) {
	                  _context2.next = 7;
	                  break;
	                }

	                _context2.t0 = [];

	              case 7:
	                records = _context2.t0;
	                records.forEach(function (record) {
	                  return _this.set(type, record, {
	                    isBackgroundOperation: true
	                  });
	                });
	                this.state[type].isDataComplete = true;

	              case 10:
	                return _context2.abrupt("return", Promise.all(Object.keys(this.state[type].data).map(function (id) {
	                  return _this.get(type, id, {
	                    include: option.include
	                  });
	                })));

	              case 11:
	              case "end":
	                return _context2.stop();
	            }
	          }
	        }, _callee2, this);
	      }));

	      return function getAll(_x3) {
	        return _getAll.apply(this, arguments);
	      };
	    }()
	    /**
	     * @param {string} type
	     * @param {option} [option={}]
	     * @return {Array.<Object>} Records
	     * @function
	     */

	  }, {
	    key: "query",
	    value: function () {
	      var _query = _asyncToGenerator(
	      /*#__PURE__*/
	      regeneratorRuntime.mark(function _callee3(type) {
	        var _this2 = this;

	        var option,
	            records,
	            _args3 = arguments;
	        return regeneratorRuntime.wrap(function _callee3$(_context3) {
	          while (1) {
	            switch (_context3.prev = _context3.next) {
	              case 0:
	                option = _args3.length > 1 && _args3[1] !== undefined ? _args3[1] : {};
	                _context3.next = 3;
	                return option.fetch();

	              case 3:
	                _context3.t0 = _context3.sent;

	                if (_context3.t0) {
	                  _context3.next = 6;
	                  break;
	                }

	                _context3.t0 = [];

	              case 6:
	                records = _context3.t0;
	                records.forEach(function (record) {
	                  return _this2.set(type, record, {
	                    isBackgroundOperation: true
	                  });
	                });
	                return _context3.abrupt("return", Promise.all(records.map(function (record) {
	                  return _this2.get(type, record.id, {
	                    include: option.include
	                  });
	                })));

	              case 9:
	              case "end":
	                return _context3.stop();
	            }
	          }
	        }, _callee3, this);
	      }));

	      return function query(_x4) {
	        return _query.apply(this, arguments);
	      };
	    }()
	    /**
	     * @callback subscriptionCallback
	     */

	    /**
	     * @param {subscriptionCallback} callback
	     * @param {string} [id=Math.random().toString(32).slice(2).substr(0, 5)]
	     * @return {Function} Unsubscribe function
	     * @function
	     */

	  }, {
	    key: "subscribe",
	    value: function subscribe(callback) {
	      var _this3 = this;

	      var id = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : Math.random().toString(32).slice(2).substr(0, 5);
	      this.subscription[id] = callback;
	      return function () {
	        return delete _this3.subscription[id];
	      };
	    }
	    /**
	     * @return {Daux.Core.Batch} Batch instance
	     * @function
	     */

	  }, {
	    key: "batch",
	    value: function batch() {
	      return new Batch(this);
	    }
	    /**
	     * @return {Object} State
	     * @private
	     * @function
	     */

	  }, {
	    key: "buildInitialState",
	    value: function buildInitialState() {
	      var model = this.model;
	      var state = {};
	      Object.keys(model).forEach(function (modelKey) {
	        state[modelKey] = {
	          isDataComplete: false,
	          data: {}
	        };
	      });
	      return state;
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @param {number} [nestLevel=0]
	     * @return {Object} State for record
	     * @private
	     * @function
	     */

	  }, {
	    key: "getCachedRecord",
	    value: function getCachedRecord(type, id) {
	      var _this4 = this;

	      var nestLevel = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;

	      if (this.state[type].data[id]) {
	        var cachedRecord = Object.assign({}, this.state[type].data[id]);
	        var modelForType = this.model[type];
	        Object.keys(modelForType.relationship).forEach(function (relationshipKey) {
	          var descriptor = modelForType.relationship[relationshipKey];

	          if (descriptor.kind === 'belongsTo' && cachedRecord[relationshipKey]) {
	            var belongsToId = cachedRecord[relationshipKey];

	            if (nestLevel < 1) {
	              cachedRecord[relationshipKey] = _this4.getCachedRecord(descriptor.type, belongsToId, nestLevel + 1);
	            } else {
	              cachedRecord[relationshipKey] = Object.assign({}, _this4.state[descriptor.type].data[belongsToId]);
	            }
	          } else if (descriptor.kind === 'hasMany' && cachedRecord[relationshipKey].length > 0) {
	            cachedRecord[relationshipKey] = cachedRecord[relationshipKey].map(function (hasManyId) {
	              if (nestLevel < 1) {
	                return _this4.getCachedRecord(descriptor.type, hasManyId, nestLevel + 1);
	              }

	              return Object.assign({}, _this4.state[descriptor.type].data[hasManyId]);
	            });
	          }
	        });
	        return cachedRecord;
	      }

	      return null;
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @return {Object} State for record
	     * @private
	     * @function
	     */

	  }, {
	    key: "getStateForRecord",
	    value: function getStateForRecord(type, id) {
	      return this.state[type].data[id] || null;
	    }
	    /**
	     * @param {string} type
	     * @param {string} id
	     * @return {boolean} True if populated. Otherwise, false.
	     * @private
	     * @function
	     */

	  }, {
	    key: "isRecordAttributePopulated",
	    value: function isRecordAttributePopulated(type, id) {
	      var currentRecordState = this.getStateForRecord(type, id);

	      if (currentRecordState) {
	        var attributes = this.model[type].attributes;
	        var populatedAttribute = attributes.find(function (key) {
	          if (currentRecordState[key] === null || Array.isArray(currentRecordState[key]) && currentRecordState[key].length === 0) {
	            return false;
	          }

	          return true;
	        });
	        return populatedAttribute;
	      }

	      return false;
	    }
	    /**
	     * @param {string} type
	     * @param {Object} record
	     * @param {Object} option
	     * @param {string} key
	     * @param {string} descriptor
	     * @private
	     * @function
	     */

	  }, {
	    key: "includeRelationship",
	    value: function () {
	      var _includeRelationship = _asyncToGenerator(
	      /*#__PURE__*/
	      regeneratorRuntime.mark(function _callee4(type, record, option, key, descriptor) {
	        var _this5 = this;

	        var includedData, _includedData, includedDataIds, uniqueHasManyIds;

	        return regeneratorRuntime.wrap(function _callee4$(_context4) {
	          while (1) {
	            switch (_context4.prev = _context4.next) {
	              case 0:
	                if (!(descriptor.kind === 'belongsTo')) {
	                  _context4.next = 9;
	                  break;
	                }

	                if (!(record[key] === null || !this.isRecordAttributePopulated(descriptor.type, record[key]))) {
	                  _context4.next = 7;
	                  break;
	                }

	                _context4.next = 4;
	                return option.include[key](record);

	              case 4:
	                includedData = _context4.sent;
	                this.set(descriptor.type, includedData, {
	                  isBackgroundOperation: true
	                });
	                this.update(type, record.id, _defineProperty({}, key, includedData.id), {
	                  isBackgroundOperation: true
	                });

	              case 7:
	                _context4.next = 17;
	                break;

	              case 9:
	                if (!(descriptor.kind === 'hasMany')) {
	                  _context4.next = 17;
	                  break;
	                }

	                _context4.next = 12;
	                return option.include[key](record);

	              case 12:
	                _includedData = _context4.sent;

	                _includedData.forEach(function (data) {
	                  return _this5.set(descriptor.type, data, {
	                    isBackgroundOperation: true
	                  });
	                });

	                includedDataIds = _includedData.map(function (data) {
	                  return data.id;
	                });
	                uniqueHasManyIds = _toConsumableArray(new Set(_toConsumableArray(record[key]).concat(_toConsumableArray(includedDataIds))));
	                this.update(type, record.id, _defineProperty({}, key, uniqueHasManyIds), {
	                  isBackgroundOperation: true
	                });

	              case 17:
	              case "end":
	                return _context4.stop();
	            }
	          }
	        }, _callee4, this);
	      }));

	      return function includeRelationship(_x5, _x6, _x7, _x8, _x9) {
	        return _includeRelationship.apply(this, arguments);
	      };
	    }()
	    /**
	     * @param {string} type
	     * @param {Object} record
	     * @param {Object} option
	     * @private
	     * @function
	     */

	  }, {
	    key: "includeRelationships",
	    value: function () {
	      var _includeRelationships = _asyncToGenerator(
	      /*#__PURE__*/
	      regeneratorRuntime.mark(function _callee5(type, record, option) {
	        var _this6 = this;

	        var relationship, includes;
	        return regeneratorRuntime.wrap(function _callee5$(_context5) {
	          while (1) {
	            switch (_context5.prev = _context5.next) {
	              case 0:
	                relationship = this.model[type].relationship;
	                includes = [];
	                Object.keys(relationship).forEach(function (key) {
	                  if (option.include[key]) {
	                    includes.push(_this6.includeRelationship(type, record, option, key, relationship[key]));
	                  }
	                });
	                _context5.next = 5;
	                return Promise.all(includes);

	              case 5:
	              case "end":
	                return _context5.stop();
	            }
	          }
	        }, _callee5, this);
	      }));

	      return function includeRelationships(_x10, _x11, _x12) {
	        return _includeRelationships.apply(this, arguments);
	      };
	    }()
	    /**
	     * @param {string} type
	     * @param {Object} record
	     * @param {string} belongsToAttribute
	     * @private
	     * @function
	     */

	  }, {
	    key: "syncAddedBelongsTo",
	    value: function syncAddedBelongsTo(type, record, belongsToAttribute) {
	      var cardinality = getCardinality(this.model, type, belongsToAttribute);
	      var descriptor = this.model[type].relationship[belongsToAttribute];
	      var recordToSync;

	      if (_typeof(record[belongsToAttribute]) === 'object' && record[belongsToAttribute] !== null) {
	        recordToSync = this.model[descriptor.type].deserialize(record[belongsToAttribute]);
	      } else {
	        recordToSync = {
	          id: record[belongsToAttribute]
	        };
	      }

	      if (cardinality === 'oneToOne') {
	        var cachedRecord = this.getStateForRecord(descriptor.type, recordToSync.id);

	        if (!cachedRecord || !cachedRecord[descriptor.inverse]) {
	          var newRecord = Object.assign(recordToSync, _defineProperty({}, descriptor.inverse, record.id));
	          this.set(descriptor.type, newRecord, {
	            isBackgroundOperation: true
	          });
	        }
	      } else if (cardinality === 'oneToMany') {
	        var _cachedRecord = this.getStateForRecord(descriptor.type, recordToSync.id);

	        if (!_cachedRecord) {
	          var _newRecord = Object.assign(recordToSync, _defineProperty({}, descriptor.inverse, [record.id]));

	          this.set(descriptor.type, _newRecord, {
	            isBackgroundOperation: true
	          });
	        } else if (!_cachedRecord[descriptor.inverse].find(function (id) {
	          return id === record.id;
	        })) {
	          _cachedRecord[descriptor.inverse].push(record.id);
	        }
	      } else {
	        var _cachedRecord2 = this.getStateForRecord(descriptor.type, recordToSync.id) || {};

	        var _newRecord2 = Object.assign(_cachedRecord2, recordToSync);

	        this.set(descriptor.type, _newRecord2, {
	          isBackgroundOperation: true
	        });
	      }
	    }
	    /**
	     * @param {string} type
	     * @param {Object} record
	     * @param {string} hasManyAttribute
	     * @private
	     * @function
	     */

	  }, {
	    key: "syncAddedHasMany",
	    value: function syncAddedHasMany(type, record, hasManyAttribute) {
	      var _this7 = this;

	      var recordsToSync = record[hasManyAttribute];

	      if (Array.isArray(recordsToSync)) {
	        recordsToSync.forEach(function (item) {
	          var cardinality = getCardinality(_this7.model, type, hasManyAttribute);
	          var descriptor = _this7.model[type].relationship[hasManyAttribute];
	          var recordToSync;

	          if (_typeof(item) === 'object' && item !== null) {
	            recordToSync = _this7.model[descriptor.type].deserialize(item);
	          } else {
	            recordToSync = {
	              id: item
	            };
	          }

	          if (cardinality === 'oneToMany') {
	            var cachedRecord = _this7.getStateForRecord(descriptor.type, recordToSync.id);

	            if (!cachedRecord) {
	              var newRecord = Object.assign(recordToSync, _defineProperty({}, descriptor.inverse, record.id));

	              _this7.set(descriptor.type, newRecord, {
	                isBackgroundOperation: true
	              });
	            } else {
	              cachedRecord[descriptor.inverse] = record.id;
	            }
	          } else if (cardinality === 'manyToMany') {
	            var _cachedRecord3 = _this7.getStateForRecord(descriptor.type, recordToSync.id);

	            if (!_cachedRecord3) {
	              var _newRecord3 = Object.assign(recordToSync, _defineProperty({}, descriptor.inverse, [record.id]));

	              _this7.set(descriptor.type, _newRecord3, {
	                isBackgroundOperation: true
	              });
	            } else if (!_cachedRecord3[descriptor.inverse].find(function (id) {
	              return id === record.id;
	            })) {
	              _cachedRecord3[descriptor.inverse].push(record.id);
	            }
	          } else {
	            var _cachedRecord4 = _this7.getStateForRecord(descriptor.type, recordToSync.id) || {};

	            var _newRecord4 = Object.assign(_cachedRecord4, recordToSync);

	            _this7.set(descriptor.type, _newRecord4, {
	              isBackgroundOperation: true
	            });
	          }
	        });
	      }
	    }
	    /**
	     * @param {string} type
	     * @param {Object} record
	     * @param {string} hasManyAttribute
	     * @private
	     * @function
	     */

	  }, {
	    key: "syncExistingHasMany",
	    value: function syncExistingHasMany(type, record, hasManyAttribute) {
	      var cardinality = getCardinality(this.model, type, hasManyAttribute);
	      var descriptor = this.model[type].relationship[hasManyAttribute];
	      var inverseData = this.state[descriptor.type].data;
	      var recordId = _typeof(record) === 'object' && record !== null ? record.id : record;

	      if (cardinality === 'oneToMany') {
	        var currentHasManyState = this.state[type].data[recordId][hasManyAttribute];
	        var inverseIds = Object.keys(this.state[descriptor.type].data).filter(function (id) {
	          return inverseData[id][descriptor.inverse] === recordId;
	        });
	        inverseIds.forEach(function (id) {
	          if (!currentHasManyState.includes(id)) {
	            currentHasManyState.push(id);
	          }
	        });
	      } else if (cardinality === 'manyToMany') {
	        var _currentHasManyState = this.state[type].data[recordId][hasManyAttribute];

	        var _inverseIds = Object.keys(this.state[descriptor.type].data).filter(function (id) {
	          return inverseData[id][descriptor.inverse].includes(recordId);
	        });

	        _inverseIds.forEach(function (id) {
	          if (!_currentHasManyState.includes(id)) {
	            _currentHasManyState.push(id);
	          }
	        });
	      }
	    }
	    /**
	     * @param {string} type
	     * @param {Object} record
	     * @private
	     * @function
	     */

	  }, {
	    key: "syncAddedRelationships",
	    value: function syncAddedRelationships(type, record) {
	      var _this8 = this;

	      Object.keys(this.model[type].relationship).forEach(function (relationshipKey) {
	        var kind = _this8.model[type].relationship[relationshipKey].kind;

	        if (record[relationshipKey]) {
	          if (kind === 'belongsTo') {
	            _this8.syncAddedBelongsTo(type, record, relationshipKey);
	          } else {
	            _this8.syncAddedHasMany(type, record, relationshipKey);
	          }
	        } else if (kind === 'hasMany') {
	          _this8.syncExistingHasMany(type, record, relationshipKey);
	        }
	      });
	    }
	    /**
	     * @param {string} type
	     * @param {Object} currentRecord
	     * @param {Object} oldRecord
	     * @param {string} key
	     * @param {Object} descriptor
	     * @private
	     * @function
	     */

	  }, {
	    key: "syncRemovedBelongsToRelationship",
	    value: function syncRemovedBelongsToRelationship(type, currentRecord, oldRecord, key, descriptor) {
	      if (currentRecord[key] === null && currentRecord[key] !== oldRecord[key]) {
	        var inverseRecord = this.getStateForRecord(descriptor.type, oldRecord[key]);

	        if (inverseRecord) {
	          var cardinality = getCardinality(this.model, type, key);

	          if (cardinality === 'oneToOne') {
	            inverseRecord[descriptor.inverse] = null;
	          } else if (cardinality === 'oneToMany') {
	            inverseRecord[descriptor.inverse] = inverseRecord[descriptor.inverse].filter(function (id) {
	              return id !== oldRecord.id;
	            });
	          }
	        }
	      }
	    }
	    /**
	     * @param {string} type
	     * @param {Object} currentRecord
	     * @param {Object} oldRecord
	     * @param {string} key
	     * @param {Object} descriptor
	     * @private
	     * @function
	     */

	  }, {
	    key: "syncRemovedHasManyRelationship",
	    value: function syncRemovedHasManyRelationship(type, currentRecord, oldRecord, key, descriptor) {
	      var _this9 = this;

	      var removedRecords = oldRecord[key].filter(function (record) {
	        return !currentRecord[key].includes(record);
	      });
	      removedRecords.forEach(function (removedRecord) {
	        var inverseRecord = _this9.getStateForRecord(descriptor.type, removedRecord);

	        if (inverseRecord) {
	          var cardinality = getCardinality(_this9.model, type, key);

	          if (cardinality === 'oneToMany') {
	            inverseRecord[descriptor.inverse] = null;
	          } else if (cardinality === 'manyToMany') {
	            inverseRecord[descriptor.inverse] = inverseRecord[descriptor.inverse].filter(function (id) {
	              return id !== oldRecord.id;
	            });
	          }
	        }
	      });
	    }
	    /**
	     * @param {string} type
	     * @param {Object} currentRecord
	     * @param {Object} oldRecord
	     * @private
	     * @function
	     */

	  }, {
	    key: "syncRemovedRelationships",
	    value: function syncRemovedRelationships(type, currentRecord, oldRecord) {
	      var _this10 = this;

	      var model = this.model[type];
	      Object.keys(model.relationship).forEach(function (attributeKey) {
	        var descriptor = model.relationship[attributeKey];

	        if (descriptor.kind === 'belongsTo') {
	          _this10.syncRemovedBelongsToRelationship(type, currentRecord, oldRecord, attributeKey, descriptor);
	        } else if (descriptor.kind === 'hasMany') {
	          _this10.syncRemovedHasManyRelationship(type, currentRecord, oldRecord, attributeKey, descriptor);
	        }
	      });
	    }
	    /**
	     * @private
	     * @function
	     */

	  }, {
	    key: "triggerSubscriptions",
	    value: function triggerSubscriptions() {
	      var _this11 = this;

	      Object.keys(this.subscription).forEach(function (key) {
	        try {
	          _this11.subscription[key]();
	        } catch (error) {
	          delete _this11.subscription[key];
	        }
	      });
	    }
	  }]);

	  return Store;
	}();

	exports.Model = Model;
	exports.Store = Store;

	Object.defineProperty(exports, '__esModule', { value: true });

})));