import { Observable } from 'rxjs';
/**
 * Static operator to avoid breaking the stream when using catchError.
 *
 * @param obj  Object that will be asynchronously returned.
 * @param [delay=0] The delay applied to the stream until it emits the provided value;
 * @returns The delayed stream.
 */
export declare function asyncOf<T>(obj: T, delayMs?: number): Observable<T>;