import { type Observable } from 'rxjs';
import type { OrchModel } from '../model';
import { Performer } from './performer';
export type SignalFactory<P, R> = (payload$: Observable<P>) => Observable<R>;
export type SignalPerformer<P, R> = Performer<P, void> & {
    signal$: Observable<R>;
};
export declare function signal<P = void, R = P>(model: OrchModel<any>, factory?: SignalFactory<P, R>): SignalPerformer<P, R>;
//# sourceMappingURL=signal.d.ts.map