import { ISmsCredentials, ICredentialsProvider, ILogger } from './interfaces';
import { IConnector } from './connector';
declare class CredentialsProvider implements ICredentialsProvider {
    private _connector;
    private _logger;
    private readonly _auth;
    private _tokens;
    private _sessionId;
    private _sessionTimeoutId;
    private _authPromise;
    constructor(login: string, sha256password: string, _connector: IConnector, _logger: ILogger);
    getCredentials(): Promise<ISmsCredentials>;
    destroy(): void;
    private _getToken;
    private _authenticate;
    private _login;
    private _getSession;
    private _clearSessionData;
    private _resetTimeout;
}
export default CredentialsProvider;