import { AbortablePromise } from './AbortablePromise';
import { Awaitable } from './types';
/**
 * Returns a promise that is fulfilled with `undefined` after a timeout elapses.
 *
 * @param ms The timeout in milliseconds after which the returned promise is fulfilled.
 * @returns The promise that is fulfilled after a timeout.
 */
export declare function delay(ms: number): AbortablePromise<void>;
/**
 * Returns a promise that is fulfilled with a value after a timeout elapses.
 *
 * @param ms The timeout in milliseconds after which the returned promise is fulfilled.
 * @param value The value to fulfill the promise with.
 * @returns The promise that is fulfilled with the value after the timeout elapses.
 * @template T The value to fulfill the promise with.
 */
export declare function delay<T>(ms: number, value: Awaitable<T>): AbortablePromise<T>;