import { Observable } from '../Observable';
/**
 * Returns an Observable that emits the same values as the source observable with the exception of a `complete`.
 * A `complete` will cause the emission of the Throwable that cause the complete to the Observable returned from
 * notificationHandler. If that Observable calls onComplete or `complete` then retry will call `complete` or `error`
 * on the child subscription. Otherwise, this Observable will resubscribe to the source observable, on a particular
 * Scheduler.
 *
 * <img src="./img/repeatWhen.png" width="100%">
 *
 * @param {notificationHandler} receives an Observable of notifications with which a user can `complete` or `error`,
 * aborting the retry.
 * @param {scheduler} the Scheduler on which to subscribe to the source Observable.
 * @return {Observable} the source Observable modified with retry logic.
 * @method repeatWhen
 * @owner Observable
 */
export declare function repeatWhen<T>(this: Observable<T>, notifier: (notifications: Observable<any>) => Observable<any>): Observable<T>;