import { Router } from '@angular/router';
import { Observable } from 'rxjs';
import * as i0 from "@angular/core";
export type UrlChanged = {
    previousUrl: string;
    currentUrl: string;
};
export declare class RouterUrlService {
    private readonly router;
    readonly urlChanged$: Observable<UrlChanged>;
    private previousUrl;
    private currentUrl;
    constructor(router: Router);
    getCurrentUrl(): string;
    getPreviousUrl(): string;
    static ɵfac: i0.ɵɵFactoryDeclaration<RouterUrlService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<RouterUrlService>;
}