/**
 * @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
 */
import { Rule } from '@angular-devkit/schematics';
/**
 * Update ngsw-config.json to fix issue https://github.com/angular/angular-cli/pull/15277
 */
export declare function updateNGSWConfig(): Rule;