/**
 * @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
 */
declare class AsyncTestZoneSpec implements ZoneSpec {
    _finishCallback: Function;
    _failCallback: Function;
    _pendingMicroTasks: boolean;
    _pendingMacroTasks: boolean;
    _alreadyErrored: boolean;
    runZone: Zone;
    constructor(finishCallback: Function, failCallback: Function, namePrefix: string);
    _finishCallbackIfDone(): void;
    name: string;
    onInvoke(parentZoneDelegate: ZoneDelegate, currentZone: Zone, targetZone: Zone, delegate: Function, applyThis: any, applyArgs: any[], source: string): any;
    onHandleError(parentZoneDelegate: ZoneDelegate, currentZone: Zone, targetZone: Zone, error: any): boolean;
    onHasTask(delegate: ZoneDelegate, current: Zone, target: Zone, hasTaskState: HasTaskState): void;
}