import { Router } from '@angular/router';
import { Storage } from '@ubud/storage';
import { Config } from '../values/config';
import { User } from '../models/user';
import { Observable } from 'rxjs';
import { Signature } from '../values/signature';
import { HttpClient } from '@angular/common/http';
export declare class NacoService {
    private config;
    private router;
    private storage;
    private http;
    readonly VERSION: string;
    private signature;
    private user;
    constructor(config: Config, router: Router, storage: Storage, http: HttpClient);
    getUser(): Observable<User | null>;
    getSignature(): Promise<Signature | null>;
    setSignature(signature: Signature): void;
    login(scopes: string, redirectUri?: string): string;
    logout(): Promise<void[]>;
    getState(): Promise<{}>;
    private generateState;
    private buildQueryString;
}