export declare function closest<T extends HTMLElement>(node: Element, selector: string): T | null;
export declare function contains(parent: Element | ShadowRoot, child: Node): boolean;
export declare function querySelector<T = HTMLElement>(parent: HTMLElement | HTMLSlotElement | ShadowRoot, selector: string): T;
export declare function querySelectorAll<T = HTMLElement>(parent: HTMLElement | HTMLSlotElement | ShadowRoot, selector: string): T[];
export declare function attachTooltip(element: HTMLElement): void;
export type Position = 'top' | 'right' | 'bottom' | 'left' | 'center' | 'none';
export type Alignment = 'start' | 'center' | 'end' | 'justify';
export declare function getValidSlotChildren(slot: HTMLSlotElement): Node[];
export declare function isEmptySlot(slot: HTMLSlotElement): boolean;