extern struct afb_token *afb_token_addref(struct afb_token *token);
extern void afb_token_unref(struct afb_token *token);
-extern int afb_token_check(struct afb_token *token);
extern const char *afb_token_string(const struct afb_token *token);
extern uint16_t afb_token_id(const struct afb_token *token);