import { ActivatedRouteSnapshot, CanActivate, Router, RouterStateSnapshot } from '@angular/router';
import { Observable } from 'rxjs';
import { VisitorService } from '../state/visitor-service/visitor-service';
import * as i0 from "@angular/core";
/**
 * Register this class as a Provider in your module before using it on a route.
 */
export declare class SignedInGuard implements CanActivate {
    private router;
    private visitorService;
    constructor(router: Router, visitorService: VisitorService);
    canActivate(route: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean>;
    private isSignedIn;
    static ɵfac: i0.ɵɵFactoryDeclaration<SignedInGuard, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SignedInGuard>;
}