extern void afb_session_close(struct afb_session *session);
extern int afb_session_is_closed (struct afb_session *session);
-extern int afb_session_check_token(struct afb_session *session, const char *token);
extern int afb_session_timeout(struct afb_session *session);
extern int afb_session_what_remains(struct afb_session *session);