/**
 * @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.dev/license
 */
import { InjectionToken } from '../di/injection_token';
export declare const DEBUG_TASK_TRACKER: InjectionToken<DebugTaskTracker>;
export interface DebugTaskTracker {
    add(taskId: number): void;
    remove(taskId: number): void;
}