--- /dev/null
+import { Observable } from '../Observable';
+import { MonoTypeOperatorFunction } from '../types';
+/**
+ * Returns an Observable that mirrors the source Observable with the exception of a `complete`. If the source
+ * Observable calls `complete`, this method will emit to the Observable returned from `notifier`. If that Observable
+ * calls `complete` or `error`, then this method will call `complete` or `error` on the child subscription. Otherwise
+ * this method will resubscribe to the source Observable.
+ *
+ * ![](repeatWhen.png)
+ *
+ * ## Example
+ * Repeat a message stream on click
+ * ```ts
+ * import { of, fromEvent } from 'rxjs';
+ * import { repeatWhen } from 'rxjs/operators';
+ *
+ * const source = of('Repeat message');
+ * const documentClick$ = fromEvent(document, 'click');
+ *
+ * source.pipe(repeatWhen(() => documentClick$)
+ * ).subscribe(data => console.log(data))
+ * ```
+ * @see {@link repeat}
+ * @see {@link retry}
+ * @see {@link retryWhen}
+ *
+ * @param {function(notifications: Observable): Observable} notifier - Receives an Observable of notifications with
+ * which a user can `complete` or `error`, aborting the repetition.
+ * @return {Observable} The source Observable modified with repeat logic.
+ * @method repeatWhen
+ * @owner Observable
+ */
+export declare function repeatWhen<T>(notifier: (notifications: Observable<any>) => Observable<any>): MonoTypeOperatorFunction<T>;