/**
 * Locks body scroll when `locked` is true, restores when false or on unmount.
 * Preserves the original overflow value and prevents scroll-jump by
 * accounting for the scrollbar width.
 *
 * @param {boolean} locked - Whether to lock body scroll
 *
 * @example
 * const [drawerOpen, setDrawerOpen] = useState(false);
 * useScrollLock(drawerOpen);
 */
export declare function useScrollLock(locked: boolean): void;