export interface UseTimeoutReturn {
    start: () => void;
    clear: () => void;
    restart: () => void;
    isActive: () => boolean;
}
/**
 * A declarative `setTimeout` hook that safely handles cleanup.
 *
 * @param callback - The function to execute.
 * @param delay - The delay in milliseconds.
 * @returns Object containing methods to stop, start, restart, and check the active status of the timeout.
 *
 * @example
 * ```tsx
 * const [show, setShow] = useState(true);
 * useTimeout(() => setShow(false), 5000);
 * if (!show) return null;
 * return <div>This will disappear in 5 seconds!</div>;
 * ```
 */
export declare function useTimeout(callback: () => void, delay: number): UseTimeoutReturn;