/**
 * Authenticates the session.
 *
 * @param {Object} sessionData Optional argument used to mock an authenticator
 * response (e.g. a token or user).
 * @return {Promise}
 * @public
 */
export declare function authenticateSession(sessionData: Record<string, any>): Promise<void>;
/**
 * Returns the current session.
 *
 * @return {Object} a session service.
 * @public
 */
export declare function currentSession(): any;
/**
 * Invalidates the session.
 *
 * @return {Promise}
 * @public
 */
export declare function invalidateSession(): Promise<any>;