--- /dev/null
+import { Observable } from '../Observable';
+import { MonoTypeOperatorFunction } from '../types';
+/**
+ * Returns an Observable that mirrors the source Observable with the exception of an `error`. If the source Observable
+ * calls `error`, this method will emit the Throwable that caused the error 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.
+ *
+ * ![](retryWhen.png)
+ *
+ * @param {function(errors: Observable): Observable} notifier - Receives an Observable of notifications with which a
+ * user can `complete` or `error`, aborting the retry.
+ * @return {Observable} The source Observable modified with retry logic.
+ * @method retryWhen
+ * @owner Observable
+ */
+export declare function retryWhen<T>(notifier: (errors: Observable<any>) => Observable<any>): MonoTypeOperatorFunction<T>;