text: // LWYS Toolkit by Liu wenyuan
  
  /**
  *   Copyright 2018 Liu Wenyuan <papaqi1234567@163.com>
  *   Licensed under the Do What The F*ck You Want To Public License, Version 2.0 (the "License");
  *   you may not use this file except in compliance with the License.
  *   You may obtain a copy of the License at
  *       http://www.wtfpl.net/about
  *   Unless required by applicable law or agreed to in writing, software
  *   distributed under the License is distributed on an "AS IS" BASIS,
  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  *   See the License for the specific language governing permissions and
  *   limitations under the License.
  **/
  
  'use strict';
  