+++ /dev/null
-import { Observable } from '../Observable';
-import { MonoTypeOperatorFunction } from '../types';
-/** @deprecated In future versions, empty notifiers will no longer re-emit the source value on the output observable. */
-export declare function delayWhen<T>(delayDurationSelector: (value: T, index: number) => Observable<never>, subscriptionDelay?: Observable<any>): MonoTypeOperatorFunction<T>;
-export declare function delayWhen<T>(delayDurationSelector: (value: T, index: number) => Observable<any>, subscriptionDelay?: Observable<any>): MonoTypeOperatorFunction<T>;