import { LitElement } from 'lit';
import { Icon } from '@nvidia-elements/core/icon';
/**
 * @element nve-menu-group
 * @description Organizes related menu items under a disclosure header that can show or hide one child menu.
 * @documentation https://nvidia.github.io/elements/docs/elements/menu/
 * @since 0.0.0
 * @entrypoint \@nvidia-elements/core/menu
 * @command --open - Opens the menu group.
 * @command --close - Closes the menu group.
 * @command --toggle - Toggles the menu group.
 * @event open - Dispatched when the user requests that the menu group open.
 * @event close - Dispatched when the user requests that the menu group close.
 * @slot - Label content for the disclosure header.
 * @slot prefix - Non-interactive content before the header label, such as an icon or avatar.
 * @slot suffix - Non-interactive content after the header label, such as a badge or count.
 * @slot menu - One `nve-menu` containing the grouped menu items. Direct menus use this slot automatically in browsers; server-rendered menus must set `slot="menu"` explicitly.
 * @cssprop --background
 * @cssprop --font-size
 * @cssprop --padding
 * @cssprop --gap
 * @cssprop --border-radius
 * @cssprop --color
 * @cssprop --width
 * @cssprop --min-height
 * @aria https://www.w3.org/WAI/ARIA/apg/patterns/disclosure/
 * @stable false
 */
export declare class MenuGroup extends LitElement {
    #private;
    static styles: import("lit").CSSResult[];
    static readonly metadata: {
        tag: string;
        version: string;
        children: string[];
    };
    static elementDefinitions: {
        [Icon.metadata.tag]: typeof Icon;
    };
    /** Determines whether the child menu is visible. */
    expanded: boolean;
    /** Prevents user activation of the disclosure header. */
    disabled: boolean;
    /** Determines whether user activation automatically updates the expanded state. */
    behaviorExpand: boolean;
    /** @private */
    _internals: ElementInternals;
    render(): import("lit-html").TemplateResult<1>;
    connectedCallback(): void;
}