text: //------------------------------------------------------------------------------------
  // MIT License
  //
  // Copyright (c) 2021 vzroman
  // Author: Vozzhenikov Roman, vzroman@gmail.com
  //
  // 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:
  //
  //     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.
  //------------------------------------------------------------------------------------
  
  import {Type as Parent} from "./any.js";
  
  export class Type extends Parent{
  
      static options = {
          class:Parent
      };
  
      coerce( value ){
          if ( this._options.class === value || this._options.class.isPrototypeOf(value) ){
              return value;
          }else{
              return undefined;
          }
      }
  }
  Type.extend();
  
  