import { ITapFunction } from '../../../../../../observer/pipes/built-in/tap/tap-function.type';
import { IObservable } from '../../../../../type/observable.type';
/**
 * @see tapObserverPipe
 */
export declare function tapObservable<GValue>(subscribe: IObservable<GValue>, tapFunction: ITapFunction<GValue>): IObservable<GValue>;