/**
 * @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
 */
export interface NO_CHANGE {
    brand: 'NO_CHANGE';
}
/** A special value which designates that a value has not changed. */
export declare const NO_CHANGE: NO_CHANGE;
