import { Injector, Type } from '@angular/core';
import { BehaviorSubject, Observable } from 'rxjs';
import { ActivatedRoute, Params, Router } from '@angular/router';
import * as i0 from "@angular/core";
export declare class BreadcrumbsService {
    private activatedRoute;
    private router;
    private injector;
    breadcrumbs$: BehaviorSubject<Breadcrumb[]>;
    constructor(activatedRoute: ActivatedRoute, router: Router, injector: Injector);
    private updateBreadcrumbs;
    private formatUrl;
    static ɵfac: i0.ɵɵFactoryDeclaration<BreadcrumbsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<BreadcrumbsService>;
}
export interface BreadcrumbConfigItem {
    label: string;
    resolver?: Type<BreadcrumbResolver>;
    url?: string;
}
export interface Breadcrumb {
    url: string;
    params: Params;
    label: Observable<string>;
}
export interface BreadcrumbResolver {
    getTitle(params: any): Observable<string>;
}