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define(['./_nativeCreate'], function(nativeCreate) {
  /** Used as a safe reference for `undefined` in pre-ES5 environments. */  var undefined;
  /** Used for built-in method references. */  var objectProto = Object.prototype;
  /** Used to check objects for own properties. */  var hasOwnProperty = objectProto.hasOwnProperty;
  /**   * Checks if a hash value for `key` exists.   *   * @private   * @name has   * @memberOf Hash   * @param {string} key The key of the entry to check.   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.   */  function hashHas(key) {    var data = this.__data__;    return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);  }
  return hashHas;});