import { ActivatedRouteSnapshot, CanActivate, CanActivateChild, CanLoad, Route, Router, RouterStateSnapshot } from '@angular/router';
import { MessageBus } from '@tangential/core';
import { Observable } from 'rxjs';
import { AuthenticationService } from '../state';
import * as i0 from "@angular/core";
/**
 * Register this class as a Provider in your module before using it on a route.
 */
export declare class HasRoleGuard implements CanActivate, CanLoad, CanActivateChild {
    private bus;
    private router;
    private authService;
    constructor(bus: MessageBus, router: Router, authService: AuthenticationService);
    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean>;
    canLoad(route: Route): Observable<boolean>;
    canActivateChild(childRoute: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean>;
    private requiredRoles;
    private doCheck;
    private firstMissingRole;
    static ɵfac: i0.ɵɵFactoryDeclaration<HasRoleGuard, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HasRoleGuard>;
}