/* Copyright IBM Corp. 2018 */
import { NgZone } from '@angular/core';
import { Observable, SchedulerLike, Subject, Subscription } from 'rxjs';
/**
 * Constructs a callback function that completes the subject and then unsubscribes all pending subscriptions
 *
 * @param aSubject  the subject
 * @return the callback
 */
declare function _completeLater<T>(aSubject: Subject<T>): () => void;
declare function _unsubscribeLater(aSubscription: Subscription | null | undefined): () => void;
export interface ZoneSchedulers {
    inside: SchedulerLike;
    outside: SchedulerLike;
}
declare function _createZoneSchedulers(aZone: NgZone, aDelegate?: SchedulerLike): ZoneSchedulers;
declare function _distinctSubject<T>(aSubject: Subject<T>): Observable<T>;
/**
 * Produces a value at a later point in time on top of a generator
 *
 * @param aGenerator the generator function
 * @return a function that takes a parameter and generates an observable based on the result
 */
declare function _createLater<K, O, T>(aGenerator: (aKey: K, aOpt?: O) => T): (aKey: K, aOpt?: O) => Observable<T>;
export { _unsubscribeLater as unsubscribeLater, _completeLater as completeLater, _createZoneSchedulers as createZoneSchedulers, _distinctSubject as distinctSubject, _createLater as createLater };