import type { NumberOfMilliseconds } from './types.js';
/**
 * Like AbortSignal, but it can "abort itself" via the `.abort()` method.
 *
 * Similar to how DeferredPromise is both a Promise and has `.resolve()` and `.reject()` methods.
 *
 * This is to simplify the AbortController/AbortSignal usage.
 *
 * Before this - you need to keep track of 2 things: AbortController and AbortSignal.
 *
 * After - you are good with only AbortableSignal, which can do both.
 * And it's compatible with AbortSignal (because it extends it).
 *
 * @experimental
 */
export interface AbortableSignal extends AbortSignal {
    abort: AbortController['abort'];
}
/**
 * Creates AbortableSignal,
 * which is like AbortSignal, but can "abort itself" with `.abort()` method.
 *
 * @experimental
 */
export declare function createAbortableSignal(): AbortableSignal;
/**
 * Returns AbortSignal if ms is defined.
 * Otherwise returns undefined.
 */
export declare function abortSignalTimeoutOrUndefined(ms: NumberOfMilliseconds | undefined): AbortSignal | undefined;
/**
 * Returns an AbortSignal that aborts after the given number of milliseconds.
 * Uses native `AbortSignal.timeout()` when available, falls back to a polyfill.
 *
 * The abort reason is a DOMException with name "TimeoutError".
 */
export declare function abortSignalTimeout(ms: NumberOfMilliseconds): AbortSignal;
export declare function polyfilledAbortSignalTimeout(ms: NumberOfMilliseconds): AbortSignal;
/**
 * Returns AbortSignal.any(signals) is the array (after filtering undefined inputs) is not empty,
 * otherwise undefined.
 */
export declare function abortSignalAnyOrUndefined(signals: (AbortSignal | undefined)[]): AbortSignal | undefined;
/**
 * Returns an AbortSignal that aborts when any of the given signals abort.
 * Uses native `AbortSignal.any()` when available, falls back to a polyfill.
 *
 * The abort reason is taken from the first signal that aborts.
 * If any input signal is already aborted, the returned signal is immediately aborted.
 *
 * If only 1 signal is passed in the input array - that Signal is returned as-is.
 */
export declare function abortSignalAny(signals: AbortSignal[]): AbortSignal;
export declare function polyfilledAbortSignalAny(signals: AbortSignal[]): AbortSignal;