import type { MappingKey } from './types/mapping.js';
import type { Observable } from './types/outputs/Observable.js';
import type { ListenEventMap, StrictListenable } from './types/outputs/StrictListenable.js';
/**
 * Picks an event from a `StrictListenable` creating an observable
 *
 * @since 2.8.0
 */
export declare function pick$<L extends StrictListenable, K extends MappingKey<ListenEventMap<L>>>(listenable: L, key: K): Observable<ListenEventMap<L>[K]>;