text: // Copyright 2013-2021, University of Colorado Boulder
  
  /**
   * VBox is a convenience specialization of LayoutBox with vertical orientation.
   *
   * @author Sam Reid (PhET Interactive Simulations)
   */
  
  import { scenery, LayoutBox } from '../imports.js';
  
  class VBox extends LayoutBox {
    /**
     * @param {Object} [options] see LayoutBox
     */
    constructor( options ) {
  
      options = options || {};
  
      assert && assert( Object.getPrototypeOf( options ) === Object.prototype,
        'Extra prototype on Node options object is a code smell' );
  
      assert && assert( !options.orientation, 'VBox sets orientation' );
      options.orientation = 'vertical';
  
      super( options );
    }
  }
  
  scenery.register( 'VBox', VBox );
  
  export default VBox;