/* Copyright IBM Corp. 2018 */
import { NgZone } from '@angular/core';
import { MonoTypeOperatorFunction, SchedulerLike } from 'rxjs';
/**
 * Service that exposes schedulers and operators that allow client code
 * to run inside or outside of angular zone.
 */
export declare class ZoneService {
    insideScheduler: SchedulerLike;
    outsideScheduler: SchedulerLike;
    /**
     * Operator to run the observer inside of a zone
     */
    observeInside: <T>() => MonoTypeOperatorFunction<T>;
    /**
     * Operator to subscribe outside of a zone
     */
    subscribeOutside: <T>() => MonoTypeOperatorFunction<T>;
    constructor(aZone: NgZone);
}
/**
 * Helper operator to assert that a function is executed in an angular zone
 *
 * @return the assertion operator
 */
export declare function opAssertInAngularZone<T>(): MonoTypeOperatorFunction<T>;