docs: function (module, exports, __webpack_require__) {
  
    // 7.1.1 ToPrimitive(input [, PreferredType])
    var isObject = __webpack_require__(4);
    // instead of the ES6 spec version, we didn't implement @@toPrimitive case
    // and the second argument - flag - preferred type is a string
    module.exports = 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");
    };
  
    /***/
  }