import { CanActivate, ActivatedRouteSnapshot, RouterStateSnapshot, Router } from '@angular/router';
import { Observable } from 'rxjs/Observable';
import { AuthHelper } from '../services/auth.helper';
export declare class LoginGuard implements CanActivate {
    private router;
    private authHelper;
    constructor(router: Router, authHelper: AuthHelper);
    canActivate(next: ActivatedRouteSnapshot, state: RouterStateSnapshot): Observable<boolean> | Promise<boolean> | boolean;
}