import { Observable } from 'rxjs/internal/Observable';
import { Http } from './http';
/**
 * `useRxAjax`
 *
 * Executes data api calls and returns response and request dispatcher.
 * Optionally a callback function can be provided to react on response.
 *
 * Example:
 * const [response, dispatch] = useRxAjax(api.getSomething);
 *
 * @param api$ - Data API callback `(req: Req) => Observable<Res>`.
 * @param next - (optional) callback to be called when Response status is changed.
 */
export declare function useRxAjax<Req, Res>(api$: (req: Req) => Observable<Res>, next?: (response: Http<Req, Res>) => void): [Http<Req, Res> | undefined, (req: Req) => void];