/**
 * Returns `true` when the user has been inactive for the given duration.
 * Resets on mouse, keyboard, touch, and scroll activity.
 *
 * @param {number} [timeoutMs=60000] - Inactivity threshold in milliseconds
 * @param {boolean} [enabled=true] - Whether idle detection is active
 * @returns {boolean} Whether the user is currently idle
 *
 * @example
 * const idle = useIdle(3 * 60 * 1000); // 3 minutes
 * // Show "Are you still there?" dialog when idle
 */
export declare function useIdle(timeoutMs?: number, enabled?: boolean): boolean;