import { CaptureCancellablePromise } from 'real-cancellable-promise';
/**
 * Returns a `capture` function which "captures" `CancellablePromise`'s and
 * cancels them when the component unmounts. This is desirable in certain
 * situations to prevent callbacks passed down to a component from being called
 * after that component is unmounted.
 *
 * ```
 * const capture = useCancellablePromiseCleanup()
 *
 * // Later, in an async function:
 * const result = await capture(api.get('xyz'))
 * ```
 */
export declare function useCancellablePromiseCleanup(): CaptureCancellablePromise;