import { Observable } from 'rxjs/Observable';
import 'rxjs/add/operator/share';
export declare class AppService {
    private onSubject;
    currentLangChanges: Observable<any>;
    constructor();
    ngOnDestroy(): void;
    saveCurrentLanguageInLS(currentLanguage: any): void;
    private initializeListening();
    private storageLangEventListener(event);
    private stop();
}