declare function closest(el: HTMLElement, selector: string): HTMLElement | null;
declare function getRect(target: HTMLElement): DOMRect;
declare function beyondBoundary(target: HTMLElement, container: HTMLElement): {
    left: boolean;
    right: boolean;
    top: boolean;
    bottom: boolean;
};
declare function index(el: HTMLElement, selector?: string): number;
declare function isRectEqual(rect1: DOMRect, rect2: DOMRect): boolean;
export { closest, getRect, beyondBoundary, index, isRectEqual };