import { Router } from '@angular/router';
import { Title } from '@angular/platform-browser';
import * as i0 from "@angular/core";
export declare class AppTitleService {
    router: Router;
    private titleService;
    private _appName;
    constructor(router: Router, titleService: Title);
    updateTitle(appName?: string): void;
    private _navigationInterceptor;
    private _getTitle;
    static ɵfac: i0.ɵɵFactoryDeclaration<AppTitleService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<AppTitleService>;
}