import { AxiosRequestHeaders } from 'axios';
import { Cookie } from 'cookiejar';
import { EAuthenticationType } from '../../enums/Authentication';
import { IAuthCredential } from '../../types/auth/AuthCredential';
/**
 * The credentials for authenticating against Twitter.
 *
 * Depending on which tokens are present, the authentication type is determined as follows:
 * - authToken, guestToken =\> Guest authentication.
 * - authToken, csrfToken, cookie =\> User authentication.
 * - authToken, guestToken, cookie =\> Guest authentication while logging in.
 *
 * @public
 */
export declare class AuthCredential implements IAuthCredential {
    private static readonly _authTokens;
    private static _currentAuthTokenIndex;
    authToken?: string;
    authenticationType?: EAuthenticationType;
    cookies?: string;
    csrfToken?: string;
    guestToken?: string;
    /**
     * @param cookies - The list of cookies to be used for authenticating against Twitter.
     * @param guestToken - The guest token to be used to authenticate a guest session.
     */
    constructor(cookies?: Cookie[], guestToken?: string);
    /**
     * Switches the current auth token to the next one.
     */
    static switchAuthToken(): void;
    /**
     * @returns The HTTP header representation of 'this' object.
     */
    toHeader(): AxiosRequestHeaders;
}