/**
 * @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
 */
/// <amd-module name="zone.js/lib/browser/event-target" />
export declare function eventTargetPatch(_global: any, api: _ZonePrivate): true | undefined;
export declare function patchEvent(global: any, api: _ZonePrivate): void;