int rnet_message_add_u8(struct rnet_message **msg, char *key, uint8_t val);
int rnet_message_add_u16(struct rnet_message **msg, char *key, uint16_t val);
int rnet_message_add_u64(struct rnet_message **msg, char *key, uint64_t val);
+int rnet_message_add_buffer(struct rnet_message **msg, char *key,
+ char *buffer, size_t len);
#endif