text: /* @preserve
   * The MIT License (MIT)
   * 
   * Copyright (c) 2014 Petka Antonov
   * 
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:</p>
   * 
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   * 
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   * 
   */
  var isES5 = (function(){
      "use strict";
      return this === undefined;
  })();
  
  if (isES5) {
      module.exports = {
          freeze: Object.freeze,
          defineProperty: Object.defineProperty,
          keys: Object.keys,
          getPrototypeOf: Object.getPrototypeOf,
          isArray: Array.isArray,
          isES5: isES5,
          propertyIsWritable: function(obj, prop) {
              var descriptor = Object.getOwnPropertyDescriptor(obj, prop);
              return !!(!descriptor || descriptor.writable || descriptor.set);
          }
      };
  } else {
      var has = {}.hasOwnProperty;
      var str = {}.toString;
      var proto = {}.constructor.prototype;
  
      var ObjectKeys = function (o) {
          var ret = [];
          for (var key in o) {
              if (has.call(o, key)) {
                  ret.push(key);
              }
          }
          return ret;
      }
  
      var ObjectDefineProperty = function (o, key, desc) {
          o[key] = desc.value;
          return o;
      }
  
      var ObjectFreeze = function (obj) {
          return obj;
      }
  
      var ObjectGetPrototypeOf = function (obj) {
          try {
              return Object(obj).constructor.prototype;
          }
          catch (e) {
              return proto;
          }
      }
  
      var ArrayIsArray = function (obj) {
          try {
              return str.call(obj) === "[object Array]";
          }
          catch(e) {
              return false;
          }
      }
  
      module.exports = {
          isArray: ArrayIsArray,
          keys: ObjectKeys,
          defineProperty: ObjectDefineProperty,
          freeze: ObjectFreeze,
          getPrototypeOf: ObjectGetPrototypeOf,
          isES5: isES5,
          propertyIsWritable: function() {
              return true;
          }
      };
  }
  