import type { Listener, Register } from "../types";
/**
 * Listens for an event with the provided `register` function until it happens or until `sentinel(event)` returns a truthy value.
 * If a `signal` is provided, listens to it to cancel the promise.
 *
 * @param register Function that registers a listener for the event to catch.
 * @param signal Optional signal parameter on which the `abort` event will be listened to.
 * @param sentinel Optional sentinel function that validates an `event` occurence.
 * @returns A promise that resolves to the `event`.
 */
export declare function until<E = Event>(register: Register<Listener<E>, any>, signal?: AbortSignal, sentinel?: (event: E) => boolean): Promise<E>;
export declare function until<E = undefined>(register: Register<Listener<E>, undefined>, signal?: AbortSignal, sentinel?: () => boolean): Promise<undefined>;