/**
 * Returns a promise that fulfills after delay and rejects with
 * `AbortError` once `signal` is aborted.
 *
 * The delay time is specified as a `Date` object or as an integer denoting
 * milliseconds to wait.
 *
 * Example:
 *
 *     // Make requests repeatedly with a delay between consecutive requests
 *     while (true) {
 *       await makeRequest(signal, params);
 *       await delay(signal, 1000);
 *     }
 *
 * Example:
 *
 *     // Make requests repeatedly with a fixed interval
 *     import {addMilliseconds} from 'date-fns';
 *
 *     let date = new Date();
 *
 *     while (true) {
 *       await makeRequest(signal, params);
 *
 *       date = addMilliseconds(date, 1000);
 *       await delay(signal, date);
 *     }
 */
export declare function delay(signal: AbortSignal, dueTime: number | Date): Promise<void>;