import { AsideContainerComponent } from '../public-api';
import { Subject } from 'rxjs';
import { Item } from './aside/interface';
import * as i0 from "@angular/core";
export declare class InternalAsideService {
    asideContainer: AsideContainerComponent;
    internalOnSelectionChange: Subject<Item>;
    constructor();
    addInstance(instance: AsideContainerComponent): void;
    toggleVisibility(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<InternalAsideService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<InternalAsideService>;
}