import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/publish';
/**
 * Sidebar service.
 *
 * Root module service to control the sidebar from any part of the app.
 */
export declare class NgaSidebarService {
    private toggle$;
    private expand$;
    private collapse$;
    /**
     * Subscribe to toggle events
     *
     * @returns Observable<{ compact: boolean, tag: string }>
     */
    onToggle(): Observable<{
        compact: boolean;
        tag: string;
    }>;
    /**
     * Subscribe to expand events
     * @returns Observable<{ tag: string }>
     */
    onExpand(): Observable<{
        tag: string;
    }>;
    /**
     * Subscribe to collapse evens
     * @returns Observable<{ tag: string }>
     */
    onCollapse(): Observable<{
        tag: string;
    }>;
    /**
     * Toggle a sidebar
     * @param boolean compact
     * @param tag tag If you have multiple sidebars on the page, mark them with `tag` input property and pass it here
     * to specify which sidebar you want to control
     */
    toggle(compact?: boolean, tag?: string): void;
    /**
     * Expands a sidebar
     * @param tag tag If you have multiple sidebars on the page, mark them with `tag` input property and pass it here
     * to specify which sidebar you want to control
     */
    expand(tag?: string): void;
    /**
     * Collapses a sidebar
     * @param {tag} tag If you have multiple sidebars on the page, mark them with `tag` input property and pass it here
     * to specify which sidebar you want to control
     */
    collapse(tag?: string): void;
}