chimee/lib/index.browser.js

a video-player aims to bring wonderful experience on browser

/**
 * chimee v0.12.0
 * (c) 2017-2020 toxic-johann
 * Released under MIT
 */

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

	var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : {};

	function unwrapExports (x) {
		return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
	}

	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: '2.6.11' };
	if (typeof __e == 'number') __e = core; // eslint-disable-line no-undef
	});
	var _core_1 = _core.version;

	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 _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 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 IS_WRAP = type & $export.W;
	  var exports = IS_GLOBAL ? _core : _core[name] || (_core[name] = {});
	  var expProto = exports[PROTOTYPE];
	  var target = IS_GLOBAL ? _global : IS_STATIC ? _global[name] : (_global[name] || {})[PROTOTYPE];
	  var key, own, out;
	  if (IS_GLOBAL) source = name;
	  for (key in source) {
	    // contains in native
	    own = !IS_FORCED && target && target[key] !== undefined;
	    if (own && _has(exports, key)) continue;
	    // export native or passed
	    out = own ? target[key] : source[key];
	    // prevent global pollution for namespaces
	    exports[key] = IS_GLOBAL && typeof target[key] != 'function' ? source[key]
	    // bind timers to global for call from export context
	    : IS_BIND && own ? _ctx(out, _global)
	    // wrap global constructors for prevent change them in library
	    : IS_WRAP && target[key] == out ? (function (C) {
	      var F = function (a, b, c) {
	        if (this instanceof C) {
	          switch (arguments.length) {
	            case 0: return new C();
	            case 1: return new C(a);
	            case 2: return new C(a, b);
	          } return new C(a, b, c);
	        } return C.apply(this, arguments);
	      };
	      F[PROTOTYPE] = C[PROTOTYPE];
	      return F;
	    // make static versions for prototype methods
	    })(out) : IS_PROTO && typeof out == 'function' ? _ctx(Function.call, out) : out;
	    // export proto methods to core.%CONSTRUCTOR%.methods.%NAME%
	    if (IS_PROTO) {
	      (exports.virtual || (exports.virtual = {}))[key] = out;
	      // export proto methods to core.%CONSTRUCTOR%.prototype.%NAME%
	      if (type & $export.R && expProto && !expProto[key]) _hide(expProto, key, out);
	    }
	  }
	};
	// 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;

	// 19.1.2.4 / 15.2.3.6 Object.defineProperty(O, P, Attributes)
	_export(_export.S + _export.F * !_descriptors, 'Object', { defineProperty: _objectDp.f });

	var $Object = _core.Object;
	var defineProperty = function defineProperty(it, key, desc) {
	  return $Object.defineProperty(it, key, desc);
	};

	var defineProperty$1 = createCommonjsModule(function (module) {
	module.exports = { "default": defineProperty, __esModule: true };
	});

	var _Object$defineProperty = unwrapExports(defineProperty$1);

	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));
	};

	var f$1 = {}.propertyIsEnumerable;

	var _objectPie = {
		f: f$1
	};

	var gOPD = Object.getOwnPropertyDescriptor;

	var f$2 = _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$2
	};

	// 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);
	};

	// 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)

	var $getOwnPropertyDescriptor = _objectGopd.f;

	_objectSap('getOwnPropertyDescriptor', function () {
	  return function getOwnPropertyDescriptor(it, key) {
	    return $getOwnPropertyDescriptor(_toIobject(it), key);
	  };
	});

	var $Object$1 = _core.Object;
	var getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
	  return $Object$1.getOwnPropertyDescriptor(it, key);
	};

	var getOwnPropertyDescriptor$1 = createCommonjsModule(function (module) {
	module.exports = { "default": getOwnPropertyDescriptor, __esModule: true };
	});

	var _Object$getOwnPropertyDescriptor = unwrapExports(getOwnPropertyDescriptor$1);

	// 7.1.13 ToObject(argument)

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

	var _library = true;

	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: _library ? 'pure' : 'global',
	  copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
	});
	});

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

	var shared = _shared('keys');

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

	// 19.1.2.9 / 15.2.3.2 Object.getPrototypeOf(O)


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

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

	// 19.1.2.9 Object.getPrototypeOf(O)



	_objectSap('getPrototypeOf', function () {
	  return function getPrototypeOf(it) {
	    return _objectGpo(_toObject(it));
	  };
	});

	var getPrototypeOf = _core.Object.getPrototypeOf;

	var getPrototypeOf$1 = createCommonjsModule(function (module) {
	module.exports = { "default": getPrototypeOf, __esModule: true };
	});

	var _Object$getPrototypeOf = unwrapExports(getPrototypeOf$1);

	// 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);
	};

	// 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 _redefine = _hide;

	var _iterators = {};

	// 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 arrayIndexOf = _arrayIncludes(false);
	var IE_PROTO$1 = _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$1) _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 _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$2 = _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$2] = O;
	  } else result = createDict();
	  return Properties === undefined ? result : _objectDps(result, Properties);
	};

	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;
	});

	var def = _objectDp.f;

	var TAG = _wks('toStringTag');

	var _setToStringTag = function (it, tag, stat) {
	  if (it && !_has(it = stat ? it : it.prototype, TAG)) def(it, TAG, { 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');
	};

	var ITERATOR = _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] || 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 (!_library && typeof IteratorPrototype[ITERATOR] != 'function') _hide(IteratorPrototype, ITERATOR, 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 ((!_library || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
	    _hide(proto, ITERATOR, $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 $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 _iterStep = function (done, value) {
	  return { value: value, done: !!done };
	};

	// 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;

	var TO_STRING_TAG = _wks('toStringTag');

	var DOMIterables = ('CSSRuleList,CSSStyleDeclaration,CSSValueList,ClientRectList,DOMRectList,DOMStringList,' +
	  'DOMTokenList,DataTransferItemList,FileList,HTMLAllCollection,HTMLCollection,HTMLFormElement,HTMLSelectElement,' +
	  'MediaList,MimeTypeArray,NamedNodeMap,NodeList,PaintRequestList,Plugin,PluginArray,SVGLengthList,SVGNumberList,' +
	  'SVGPathSegList,SVGPointList,SVGStringList,SVGTransformList,SourceBufferList,StyleSheetList,TextTrackCueList,' +
	  'TextTrackList,TouchList').split(',');

	for (var i = 0; i < DOMIterables.length; i++) {
	  var NAME = DOMIterables[i];
	  var Collection = _global[NAME];
	  var proto = Collection && Collection.prototype;
	  if (proto && !proto[TO_STRING_TAG]) _hide(proto, TO_STRING_TAG, NAME);
	  _iterators[NAME] = _iterators.Array;
	}

	var f$3 = _wks;

	var _wksExt = {
		f: f$3
	};

	var iterator = _wksExt.f('iterator');

	var iterator$1 = createCommonjsModule(function (module) {
	module.exports = { "default": iterator, __esModule: true };
	});

	unwrapExports(iterator$1);

	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 defineProperty$2 = _objectDp.f;
	var _wksDefine = function (name) {
	  var $Symbol = _core.Symbol || (_core.Symbol = {});
	  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty$2($Symbol, name, { value: _wksExt.f(name) });
	};

	var f$4 = Object.getOwnPropertySymbols;

	var _objectGops = {
		f: f$4
	};

	// all enumerable object keys, includes symbols



	var _enumKeys = function (it) {
	  var result = _objectKeys(it);
	  var getSymbols = _objectGops.f;
	  if (getSymbols) {
	    var symbols = getSymbols(it);
	    var isEnum = _objectPie.f;
	    var i = 0;
	    var key;
	    while (symbols.length > i) if (isEnum.call(it, key = symbols[i++])) result.push(key);
	  } return result;
	};

	// 7.2.2 IsArray(argument)

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

	// 19.1.2.7 / 15.2.3.4 Object.getOwnPropertyNames(O)

	var hiddenKeys = _enumBugKeys.concat('length', 'prototype');

	var f$5 = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
	  return _objectKeysInternal(O, hiddenKeys);
	};

	var _objectGopn = {
		f: f$5
	};

	// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window

	var gOPN = _objectGopn.f;
	var toString$1 = {}.toString;

	var windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames
	  ? Object.getOwnPropertyNames(window) : [];

	var getWindowNames = function (it) {
	  try {
	    return gOPN(it);
	  } catch (e) {
	    return windowNames.slice();
	  }
	};

	var f$6 = function getOwnPropertyNames(it) {
	  return windowNames && toString$1.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(_toIobject(it));
	};

	var _objectGopnExt = {
		f: f$6
	};

	// ECMAScript 6 symbols shim





	var META = _meta.KEY;





















	var gOPD$1 = _objectGopd.f;
	var dP$1 = _objectDp.f;
	var gOPN$1 = _objectGopnExt.f;
	var $Symbol = _global.Symbol;
	var $JSON = _global.JSON;
	var _stringify = $JSON && $JSON.stringify;
	var PROTOTYPE$2 = 'prototype';
	var HIDDEN = _wks('_hidden');
	var TO_PRIMITIVE = _wks('toPrimitive');
	var isEnum = {}.propertyIsEnumerable;
	var SymbolRegistry = _shared('symbol-registry');
	var AllSymbols = _shared('symbols');
	var OPSymbols = _shared('op-symbols');
	var ObjectProto$1 = Object[PROTOTYPE$2];
	var USE_NATIVE = typeof $Symbol == 'function' && !!_objectGops.f;
	var QObject = _global.QObject;
	// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173
	var setter = !QObject || !QObject[PROTOTYPE$2] || !QObject[PROTOTYPE$2].findChild;

	// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687
	var setSymbolDesc = _descriptors && _fails(function () {
	  return _objectCreate(dP$1({}, 'a', {
	    get: function () { return dP$1(this, 'a', { value: 7 }).a; }
	  })).a != 7;
	}) ? function (it, key, D) {
	  var protoDesc = gOPD$1(ObjectProto$1, key);
	  if (protoDesc) delete ObjectProto$1[key];
	  dP$1(it, key, D);
	  if (protoDesc && it !== ObjectProto$1) dP$1(ObjectProto$1, key, protoDesc);
	} : dP$1;

	var wrap = function (tag) {
	  var sym = AllSymbols[tag] = _objectCreate($Symbol[PROTOTYPE$2]);
	  sym._k = tag;
	  return sym;
	};

	var isSymbol = USE_NATIVE && typeof $Symbol.iterator == 'symbol' ? function (it) {
	  return typeof it == 'symbol';
	} : function (it) {
	  return it instanceof $Symbol;
	};

	var $defineProperty = function defineProperty(it, key, D) {
	  if (it === ObjectProto$1) $defineProperty(OPSymbols, key, D);
	  _anObject(it);
	  key = _toPrimitive(key, true);
	  _anObject(D);
	  if (_has(AllSymbols, key)) {
	    if (!D.enumerable) {
	      if (!_has(it, HIDDEN)) dP$1(it, HIDDEN, _propertyDesc(1, {}));
	      it[HIDDEN][key] = true;
	    } else {
	      if (_has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
	      D = _objectCreate(D, { enumerable: _propertyDesc(0, false) });
	    } return setSymbolDesc(it, key, D);
	  } return dP$1(it, key, D);
	};
	var $defineProperties = function defineProperties(it, P) {
	  _anObject(it);
	  var keys = _enumKeys(P = _toIobject(P));
	  var i = 0;
	  var l = keys.length;
	  var key;
	  while (l > i) $defineProperty(it, key = keys[i++], P[key]);
	  return it;
	};
	var $create = function create(it, P) {
	  return P === undefined ? _objectCreate(it) : $defineProperties(_objectCreate(it), P);
	};
	var $propertyIsEnumerable = function propertyIsEnumerable(key) {
	  var E = isEnum.call(this, key = _toPrimitive(key, true));
	  if (this === ObjectProto$1 && _has(AllSymbols, key) && !_has(OPSymbols, key)) return false;
	  return E || !_has(this, key) || !_has(AllSymbols, key) || _has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
	};
	var $getOwnPropertyDescriptor$1 = function getOwnPropertyDescriptor(it, key) {
	  it = _toIobject(it);
	  key = _toPrimitive(key, true);
	  if (it === ObjectProto$1 && _has(AllSymbols, key) && !_has(OPSymbols, key)) return;
	  var D = gOPD$1(it, key);
	  if (D && _has(AllSymbols, key) && !(_has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
	  return D;
	};
	var $getOwnPropertyNames = function getOwnPropertyNames(it) {
	  var names = gOPN$1(_toIobject(it));
	  var result = [];
	  var i = 0;
	  var key;
	  while (names.length > i) {
	    if (!_has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
	  } return result;
	};
	var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
	  var IS_OP = it === ObjectProto$1;
	  var names = gOPN$1(IS_OP ? OPSymbols : _toIobject(it));
	  var result = [];
	  var i = 0;
	  var key;
	  while (names.length > i) {
	    if (_has(AllSymbols, key = names[i++]) && (IS_OP ? _has(ObjectProto$1, key) : true)) result.push(AllSymbols[key]);
	  } return result;
	};

	// 19.4.1.1 Symbol([description])
	if (!USE_NATIVE) {
	  $Symbol = function Symbol() {
	    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
	    var tag = _uid(arguments.length > 0 ? arguments[0] : undefined);
	    var $set = function (value) {
	      if (this === ObjectProto$1) $set.call(OPSymbols, value);
	      if (_has(this, HIDDEN) && _has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
	      setSymbolDesc(this, tag, _propertyDesc(1, value));
	    };
	    if (_descriptors && setter) setSymbolDesc(ObjectProto$1, tag, { configurable: true, set: $set });
	    return wrap(tag);
	  };
	  _redefine($Symbol[PROTOTYPE$2], 'toString', function toString() {
	    return this._k;
	  });

	  _objectGopd.f = $getOwnPropertyDescriptor$1;
	  _objectDp.f = $defineProperty;
	  _objectGopn.f = _objectGopnExt.f = $getOwnPropertyNames;
	  _objectPie.f = $propertyIsEnumerable;
	  _objectGops.f = $getOwnPropertySymbols;

	  if (_descriptors && !_library) {
	    _redefine(ObjectProto$1, 'propertyIsEnumerable', $propertyIsEnumerable, true);
	  }

	  _wksExt.f = function (name) {
	    return wrap(_wks(name));
	  };
	}

	_export(_export.G + _export.W + _export.F * !USE_NATIVE, { Symbol: $Symbol });

	for (var es6Symbols = (
	  // 19.4.2.2, 19.4.2.3, 19.4.2.4, 19.4.2.6, 19.4.2.8, 19.4.2.9, 19.4.2.10, 19.4.2.11, 19.4.2.12, 19.4.2.13, 19.4.2.14
	  'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'
	).split(','), j = 0; es6Symbols.length > j;)_wks(es6Symbols[j++]);

	for (var wellKnownSymbols = _objectKeys(_wks.store), k = 0; wellKnownSymbols.length > k;) _wksDefine(wellKnownSymbols[k++]);

	_export(_export.S + _export.F * !USE_NATIVE, 'Symbol', {
	  // 19.4.2.1 Symbol.for(key)
	  'for': function (key) {
	    return _has(SymbolRegistry, key += '')
	      ? SymbolRegistry[key]
	      : SymbolRegistry[key] = $Symbol(key);
	  },
	  // 19.4.2.5 Symbol.keyFor(sym)
	  keyFor: function keyFor(sym) {
	    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');
	    for (var key in SymbolRegistry) if (SymbolRegistry[key] === sym) return key;
	  },
	  useSetter: function () { setter = true; },
	  useSimple: function () { setter = false; }
	});

	_export(_export.S + _export.F * !USE_NATIVE, 'Object', {
	  // 19.1.2.2 Object.create(O [, Properties])
	  create: $create,
	  // 19.1.2.4 Object.defineProperty(O, P, Attributes)
	  defineProperty: $defineProperty,
	  // 19.1.2.3 Object.defineProperties(O, Properties)
	  defineProperties: $defineProperties,
	  // 19.1.2.6 Object.getOwnPropertyDescriptor(O, P)
	  getOwnPropertyDescriptor: $getOwnPropertyDescriptor$1,
	  // 19.1.2.7 Object.getOwnPropertyNames(O)
	  getOwnPropertyNames: $getOwnPropertyNames,
	  // 19.1.2.8 Object.getOwnPropertySymbols(O)
	  getOwnPropertySymbols: $getOwnPropertySymbols
	});

	// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives
	// https://bugs.chromium.org/p/v8/issues/detail?id=3443
	var FAILS_ON_PRIMITIVES = _fails(function () { _objectGops.f(1); });

	_export(_export.S + _export.F * FAILS_ON_PRIMITIVES, 'Object', {
	  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
	    return _objectGops.f(_toObject(it));
	  }
	});

	// 24.3.2 JSON.stringify(value [, replacer [, space]])
	$JSON && _export(_export.S + _export.F * (!USE_NATIVE || _fails(function () {
	  var S = $Symbol();
	  // MS Edge converts symbol values to JSON as {}
	  // WebKit converts symbol values to JSON as null
	  // V8 throws on boxed symbols
	  return _stringify([S]) != '[null]' || _stringify({ a: S }) != '{}' || _stringify(Object(S)) != '{}';
	})), 'JSON', {
	  stringify: function stringify(it) {
	    var args = [it];
	    var i = 1;
	    var replacer, $replacer;
	    while (arguments.length > i) args.push(arguments[i++]);
	    $replacer = replacer = args[1];
	    if (!_isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined
	    if (!_isArray(replacer)) replacer = function (key, value) {
	      if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
	      if (!isSymbol(value)) return value;
	    };
	    args[1] = replacer;
	    return _stringify.apply($JSON, args);
	  }
	});

	// 19.4.3.4 Symbol.prototype[@@toPrimitive](hint)
	$Symbol[PROTOTYPE$2][TO_PRIMITIVE] || _hide($Symbol[PROTOTYPE$2], TO_PRIMITIVE, $Symbol[PROTOTYPE$2].valueOf);
	// 19.4.3.5 Symbol.prototype[@@toStringTag]
	_setToStringTag($Symbol, 'Symbol');
	// 20.2.1.9 Math[@@toStringTag]
	_setToStringTag(Math, 'Math', true);
	// 24.3.3 JSON[@@toStringTag]
	_setToStringTag(_global.JSON, 'JSON', true);

	_wksDefine('asyncIterator');

	_wksDefine('observable');

	var symbol = _core.Symbol;

	var symbol$1 = createCommonjsModule(function (module) {
	module.exports = { "default": symbol, __esModule: true };
	});

	unwrapExports(symbol$1);

	var _typeof_1 = createCommonjsModule(function (module, exports) {

	exports.__esModule = true;



	var _iterator2 = _interopRequireDefault(iterator$1);



	var _symbol2 = _interopRequireDefault(symbol$1);

	var _typeof = typeof _symbol2.default === "function" && typeof _iterator2.default === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj; };

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	exports.default = typeof _symbol2.default === "function" && _typeof(_iterator2.default) === "symbol" ? function (obj) {
	  return typeof obj === "undefined" ? "undefined" : _typeof(obj);
	} : function (obj) {
	  return obj && typeof _symbol2.default === "function" && obj.constructor === _symbol2.default && obj !== _symbol2.default.prototype ? "symbol" : typeof obj === "undefined" ? "undefined" : _typeof(obj);
	};
	});

	var _typeof = unwrapExports(_typeof_1);

	var classCallCheck = createCommonjsModule(function (module, exports) {

	exports.__esModule = true;

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

	var _classCallCheck = unwrapExports(classCallCheck);

	var possibleConstructorReturn = createCommonjsModule(function (module, exports) {

	exports.__esModule = true;



	var _typeof3 = _interopRequireDefault(_typeof_1);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	exports.default = function (self, call) {
	  if (!self) {
	    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
	  }

	  return call && ((typeof call === "undefined" ? "undefined" : (0, _typeof3.default)(call)) === "object" || typeof call === "function") ? call : self;
	};
	});

	var _possibleConstructorReturn = unwrapExports(possibleConstructorReturn);

	var get = createCommonjsModule(function (module, exports) {

	exports.__esModule = true;



	var _getPrototypeOf2 = _interopRequireDefault(getPrototypeOf$1);



	var _getOwnPropertyDescriptor2 = _interopRequireDefault(getOwnPropertyDescriptor$1);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	exports.default = function get(object, property, receiver) {
	  if (object === null) object = Function.prototype;
	  var desc = (0, _getOwnPropertyDescriptor2.default)(object, property);

	  if (desc === undefined) {
	    var parent = (0, _getPrototypeOf2.default)(object);

	    if (parent === null) {
	      return undefined;
	    } else {
	      return get(parent, property, receiver);
	    }
	  } else if ("value" in desc) {
	    return desc.value;
	  } else {
	    var getter = desc.get;

	    if (getter === undefined) {
	      return undefined;
	    }

	    return getter.call(receiver);
	  }
	};
	});

	var _get = unwrapExports(get);

	var createClass = createCommonjsModule(function (module, exports) {

	exports.__esModule = true;



	var _defineProperty2 = _interopRequireDefault(defineProperty$1);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	exports.default = 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;
	      (0, _defineProperty2.default)(target, descriptor.key, descriptor);
	    }
	  }

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

	var _createClass = unwrapExports(createClass);

	// 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
	};

	// 19.1.3.19 Object.setPrototypeOf(O, proto)

	_export(_export.S, 'Object', { setPrototypeOf: _setProto.set });

	var setPrototypeOf = _core.Object.setPrototypeOf;

	var setPrototypeOf$1 = createCommonjsModule(function (module) {
	module.exports = { "default": setPrototypeOf, __esModule: true };
	});

	unwrapExports(setPrototypeOf$1);

	// 19.1.2.2 / 15.2.3.5 Object.create(O [, Properties])
	_export(_export.S, 'Object', { create: _objectCreate });

	var $Object$2 = _core.Object;
	var create = function create(P, D) {
	  return $Object$2.create(P, D);
	};

	var create$1 = createCommonjsModule(function (module) {
	module.exports = { "default": create, __esModule: true };
	});

	var _Object$create = unwrapExports(create$1);

	var inherits = createCommonjsModule(function (module, exports) {

	exports.__esModule = true;



	var _setPrototypeOf2 = _interopRequireDefault(setPrototypeOf$1);



	var _create2 = _interopRequireDefault(create$1);



	var _typeof3 = _interopRequireDefault(_typeof_1);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	exports.default = function (subClass, superClass) {
	  if (typeof superClass !== "function" && superClass !== null) {
	    throw new TypeError("Super expression must either be null or a function, not " + (typeof superClass === "undefined" ? "undefined" : (0, _typeof3.default)(superClass)));
	  }

	  subClass.prototype = (0, _create2.default)(superClass && superClass.prototype, {
	    constructor: {
	      value: subClass,
	      enumerable: false,
	      writable: true,
	      configurable: true
	    }
	  });
	  if (superClass) _setPrototypeOf2.default ? (0, _setPrototypeOf2.default)(subClass, superClass) : subClass.__proto__ = superClass;
	};
	});

	var _inherits = unwrapExports(inherits);

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

	var TAG$1 = _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$1)) == '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_isIterable = _core.isIterable = function (it) {
	  var O = Object(it);
	  return O[ITERATOR$1] !== undefined
	    || '@@iterator' in O
	    // eslint-disable-next-line no-prototype-builtins
	    || _iterators.hasOwnProperty(_classof(O));
	};

	var isIterable = core_isIterable;

	var isIterable$1 = createCommonjsModule(function (module) {
	module.exports = { "default": isIterable, __esModule: true };
	});

	unwrapExports(isIterable$1);

	var ITERATOR$2 = _wks('iterator');

	var core_getIteratorMethod = _core.getIteratorMethod = function (it) {
	  if (it != undefined) return it[ITERATOR$2]
	    || it['@@iterator']
	    || _iterators[_classof(it)];
	};

	var core_getIterator = _core.getIterator = function (it) {
	  var iterFn = core_getIteratorMethod(it);
	  if (typeof iterFn != 'function') throw TypeError(it + ' is not iterable!');
	  return _anObject(iterFn.call(it));
	};

	var getIterator = core_getIterator;

	var getIterator$1 = createCommonjsModule(function (module) {
	module.exports = { "default": getIterator, __esModule: true };
	});

	var _getIterator = unwrapExports(getIterator$1);

	var slicedToArray = createCommonjsModule(function (module, exports) {

	exports.__esModule = true;



	var _isIterable3 = _interopRequireDefault(isIterable$1);



	var _getIterator3 = _interopRequireDefault(getIterator$1);

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	exports.default = function () {
	  function sliceIterator(arr, i) {
	    var _arr = [];
	    var _n = true;
	    var _d = false;
	    var _e = undefined;

	    try {
	      for (var _i = (0, _getIterator3.default)(arr), _s; !(_n = (_s = _i.next()).done); _n = true) {
	        _arr.push(_s.value);

	        if (i && _arr.length === i) break;
	      }
	    } catch (err) {
	      _d = true;
	      _e = err;
	    } finally {
	      try {
	        if (!_n && _i["return"]) _i["return"]();
	      } finally {
	        if (_d) throw _e;
	      }
	    }

	    return _arr;
	  }

	  return function (arr, i) {
	    if (Array.isArray(arr)) {
	      return arr;
	    } else if ((0, _isIterable3.default)(Object(arr))) {
	      return sliceIterator(arr, i);
	    } else {
	      throw new TypeError("Invalid attempt to destructure non-iterable instance");
	    }
	  };
	}();
	});

	var _slicedToArray = unwrapExports(slicedToArray);

	var isEnum$1 = _objectPie.f;
	var _objectToArray = function (isEntries) {
	  return function (it) {
	    var O = _toIobject(it);
	    var keys = _objectKeys(O);
	    var length = keys.length;
	    var i = 0;
	    var result = [];
	    var key;
	    while (length > i) {
	      key = keys[i++];
	      if (!_descriptors || isEnum$1.call(O, key)) {
	        result.push(isEntries ? [key, O[key]] : O[key]);
	      }
	    }
	    return result;
	  };
	};

	// https://github.com/tc39/proposal-object-values-entries

	var $entries = _objectToArray(true);

	_export(_export.S, 'Object', {
	  entries: function entries(it) {
	    return $entries(it);
	  }
	});

	var entries = _core.Object.entries;

	var entries$1 = createCommonjsModule(function (module) {
	module.exports = { "default": entries, __esModule: true };
	});

	var _Object$entries = unwrapExports(entries$1);

	// 19.1.2.14 Object.keys(O)



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

	var keys = _core.Object.keys;

	var keys$1 = createCommonjsModule(function (module) {
	module.exports = { "default": keys, __esModule: true };
	});

	var _Object$keys = unwrapExports(keys$1);

	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 ==