import { ComponentInterface } from '../../stencil-public-runtime';
/**
 * @name Option Group
 * @category Forms
 * @summary Use for grouping related options under a label in Select or Dropdown.
 */
export declare class Q2Optgroup implements ComponentInterface {
    guid: number;
    mutationObserver: MutationObserver;
    hostElement: HTMLElement;
    hidden: boolean;
    /** Determines whether all nested options are disabled. */
    disabled: boolean;
    /** Serves as the group header text. */
    label: string;
    disconnectedCallback(): void;
    componentWillLoad(): void;
    disabledWatcher(disabled: boolean): void;
    get headerId(): string;
    get options(): HTMLQ2OptionElement[];
    setHidden: () => void;
    render(): any;
}