import { Cache } from 'cache-manager';
import { AWeberConfigDto } from '../../config/config.dto';
export declare class AuthService {
    private readonly config;
    private cacheManager;
    private readonly logger;
    private readonly OAUTH_URL;
    private readonly TOKEN_URL;
    constructor(config: AWeberConfigDto, cacheManager: Cache);
    private generateCacheKey;
    accessToken(): Promise<string>;
    getAuthorizationUrl(redirectUri: string, state?: string): string;
    exchangeCodeForToken(code: string, redirectUri: string): Promise<string>;
    private refreshAccessToken;
    private requestAccessToken;
    private saveTokenResponse;
    clearTokens(): Promise<void>;
}