/**
 * @license
 * Copyright Google LLC 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
 */
export declare function copyAssets(entries: {
    glob: string;
    ignore?: string[];
    input: string;
    output: string;
    flatten?: boolean;
    followSymlinks?: boolean;
}[], basePaths: Iterable<string>, root: string, changed?: Set<string>): Promise<void>;