import { CSSResultArray, TemplateResult } from 'lit';
import { LuzmoMenu } from './menu';
/**
 * @element luzmo-menu-group
 *
 * @slot header - headline of the menu group
 * @slot - menu items to be listed in the group
 */
export declare class LuzmoMenuGroup extends LuzmoMenu {
    static get styles(): CSSResultArray;
    private headerId;
    private headerElements;
    private headerElement?;
    render(): TemplateResult;
    protected get ownRole(): string;
    protected updateLabel(): void;
}