/** @see https://github.com/microsoft/tabster/tree/master/src/Shadowdomize */
/**
 * Finds the closest element from the given element (inclusive) that matches the
 * given selector. Comparing to the native `Element.closest()`, it penatrates
 * shadow trees and considers slotted elements as children of their assigned
 * slot elements’ ancestors.
 *
 * @param {Element|ShadowRoot} start
 * @param {string} selector
 */
export declare function getClosestElement(start: Element | ShadowRoot, selector: string): any;
export declare function nodeContains(node: any, otherNode: any): boolean;
/**
 * Gets the parent element of the given node, crossing shadow boundaries.
 * Like `Node.parentElement`, but:
 * - Slotted elements are treated as children of their assigned slot.
 * - Elements at a shadow root boundary return the shadow host.
 *
 * @param {Node} node
 * @returns {Element|null}
 */
export declare function getParentElement(node: Node): Element | null;
export declare function getLastElementChild(node: any): any;
export declare function getLastElementDescendant(container: any): any;