/**
 *  DOM helper functions.
 */
/**
 * Search the parent nodes of the element to find an parent
 * that has the given class.
 *
 * @param element DOM element to start search from.
 * @param classname CSS class to search for.
 */
export declare const findParentByClassname: (element: HTMLElement | null, classname: string) => HTMLElement | null;
export declare const findParentDraggable: (target: HTMLElement | null) => HTMLElement | null;