/** Checks that passed value is an DOM Element Node */
export declare const isElement: (el: any) => el is Element;
/**
 * Get the Element that is the root element of the document.
 * @param element - element for which to get the document element
 * */
export declare const getDocument: (element?: Element | Window) => Element;
/**
 * Get the name of node.
 * @param element - element for which to get the name
 */
export declare const getNodeName: (element?: Node | Window) => string;
/**
 * Get the parent of the specified element in the DOM tree.
 * @param element - element for which to get the parent
 */
export declare const getParentNode: (element: Element | ShadowRoot) => Node;