code: function cloneArgs(args) {
      var newArgs = {};
      for(var key in args){
        if (key && args.hasOwnProperty(key)) {
          newArgs[key] = args[key];
        }
      }
      newArgs.isCacheableValue = args.isCacheableValue && args.isCacheableValue.bind(newArgs);
      return newArgs;
    }
docs: Clones args'es own properties to a new object and sets isCacheableValue on the new object
  @param  {Object} args
  @returns {Object} a clone of the args object