/**
 * Traps focus within a DOM node. Shifting focus with `Tab` and `Shift-Tab` will loop through all focusable elements of the node.
 * Nesting is handled naturally by the browser's event model — keydown events only bubble through DOM ancestors,
 * so a trap only fires when focus is actually inside its container.
 */
export declare function useFocusTrap(focusContainer: HTMLElement | null, enabled?: boolean): void;
export declare function useFocusFirstFocusableElement(): (container: HTMLElement) => void;