/** Debounces a callback. The returned function keeps a stable identity across re-renders. */
export declare function useDebouncedCallback<T extends (...args: never[]) => void>(callback: T, delay: number): ((...args: Parameters<T>) => void) & {
    cancel: () => void;
};
/** Trails `value` by `delay`, so a fast-changing input drives one query instead of one per keystroke. */
export declare function useDebouncedValue<T>(value: T, delay: number): T;