hunk.code_window:       });
       }
       return new Observable<BuilderOutput>(observer => {
         const subscriptions: Subscription[] = [];
         const inputSubscription = context.inboundBus.subscribe(
           i => {
  
hunk.labels: keep keep keep replace keep keep keep keep
hunk.after_edit:     return new Observable<OutT>(observer => {
  
hunk.file_path: packages/angular_devkit/architect/src/create-builder.ts
hunk.type: replace
file: /**
   * @license
   * Copyright Google Inc. All Rights Reserved.
   *
   * Use of this source code is governed by an MIT-style license that can be
   * found in the LICENSE file at https://angular.io/license
   */
  /**
   * This file includes polyfills needed by Angular and is loaded before the app.
   * You can add your own extra polyfills to this file.
   *
   * This file is divided into 2 sections:
   *   1. Browser polyfills. These are applied before loading ZoneJS and are sorted by browsers.
   *   2. Application imports. Files imported after ZoneJS that should be loaded before your main
   *      file.
   *
   * The current setup is for so-called "evergreen" browsers; the last versions of browsers that
   * automatically update themselves. This includes Safari >= 10, Chrome >= 55 (including Opera),
   * Edge >= 13 on the desktop, and iOS 10 and Chrome on mobile.
   *
   * Learn more in https://angular.io/guide/browser-support
   */
  
  /***************************************************************************************************
   * BROWSER POLYFILLS
   */
  
  /** IE9, IE10 and IE11 requires all of the following polyfills. **/
  // import 'core-js/es6/symbol';
  // import 'core-js/es6/object';
  // import 'core-js/es6/function';
  // import 'core-js/es6/parse-int';
  // import 'core-js/es6/parse-float';
  // import 'core-js/es6/number';
  // import 'core-js/es6/math';
  // import 'core-js/es6/string';
  // import 'core-js/es6/date';
  // import 'core-js/es6/array';
  // import 'core-js/es6/regexp';
  // import 'core-js/es6/map';
  // import 'core-js/es6/weak-map';
  // import 'core-js/es6/set';
  
  /** IE10 and IE11 requires the following for NgClass support on SVG elements */
  // import 'classlist.js';  // Run `npm install --save classlist.js`.
  
  /** IE10 and IE11 requires the following for the Reflect API. */
  // import 'core-js/es6/reflect';
  
  
  /** Evergreen browsers require these. **/
  // Used for reflect-metadata in JIT. If you use AOT (and only Angular decorators), you can remove.
  import 'core-js/es7/reflect';
  
  
  /**
   * Required to support Web Animations `@angular/platform-browser/animations`.
   * Needed for: All but Chrome, Firefox and Opera. http://caniuse.com/#feat=web-animation
   **/
  // import 'web-animations-js';  // Run `npm install --save web-animations-js`.
  
  
  
  /***************************************************************************************************
   * Zone JS is required by default for Angular itself.
   */
  import 'zone.js/dist/zone';  // Included with Angular CLI.
  
  
  
  /***************************************************************************************************
   * APPLICATION IMPORTS
   */
  