import { Observable } from '../Observable';
/**
* Returns an Observable that skips items emitted by the source Observable until a second Observable emits an item.
*
* <img src="./img/skipUntil.png" width="100%">
*
* @param {Observable} the second Observable that has to emit an item before the source Observable's elements begin to
* be mirrored by the resulting Observable.
* @returns {Observable<T>} an Observable that skips items from the source Observable until the second Observable emits
* an item, then emits the remaining items.
*/
export declare function skipUntil<T>(notifier: Observable<any>): Observable<T>;