import { Observable } from "../Observable";
import { Property } from "../Property";
/**
 * Creates a Property that indicates whether observable is awaiting the other observable,
 * i.e. has produced a value after the latest value from the other. This is handy for
 * keeping track whether we are currently awaiting an AJAX response
 *
 * @param toWait Observable whose value is waited after each event of `obs`
 * @param obs Observable who is waiting `toWait`
 *
 * @example
 *
 * const searchReq = F.map(toRequest, searchTextChange)
 * const searchRes = F.flatMapLatest(sendRequest, searchReq)
 * const isRequestPending = F.awaiting(searchRes, searchReq)
 *
 * @public
 */
export declare const awaiting: CurriedAwaiting;
interface CurriedAwaiting {
    (toWait: Observable<any>, obs: Observable<any>): Property<boolean>;
    (toWait: Observable<any>): (obs: Observable<any>) => Property<boolean>;
}
export {};