/**
 * Sidebar — a vertical navigation panel composed of `mud-sidebar-group`
 * sections and `mud-sidebar-item` rows.
 *
 * @element mud-sidebar
 * @slot - `mud-sidebar-group` and/or `mud-sidebar-item` elements.
 * @part sidebar - The bordered navigation surface.
 */
export declare class MudSidebar {
    /** Collapse to the icon-only compact rail. */
    collapsed: boolean;
    /** Accessible name for the navigation landmark. */
    ariaLabel?: string;
    host: HTMLMudSidebarElement;
    handleCollapsedChange(): void;
    componentDidLoad(): void;
    private handleSlotChange;
    private propagateCollapsed;
    render(): any;
}