import { ActivatedRoute } from '@angular/router';
import { Location } from '@angular/common';
import { Router } from '@angular/router';
export declare class LemonRouterService {
    private location;
    private activatedRoute;
    private router;
    constructor(location: Location, activatedRoute: ActivatedRoute, router: Router);
    back(): void;
    navigateTo(path: string, params?: {}, isRelativeTo?: boolean, preserveFragment?: boolean): void;
    private deleteUndefinedProperty;
}