int sd_bus_message_get_reply_cookie(sd_bus_message *m, uint64_t *cookie);
int sd_bus_message_get_no_reply(sd_bus_message *m);
int sd_bus_message_get_no_auto_start(sd_bus_message *m);
+int sd_bus_message_get_priority(sd_bus_message *m, int64_t *priority);
const char *sd_bus_message_get_signature(sd_bus_message *m, int complete);
const char *sd_bus_message_get_path(sd_bus_message *m);
int sd_bus_message_set_no_reply(sd_bus_message *m, int b);
int sd_bus_message_set_no_auto_start(sd_bus_message *m, int b);
int sd_bus_message_set_destination(sd_bus_message *m, const char *destination);
+int sd_bus_message_set_priority(sd_bus_message *m, int64_t priority);
int sd_bus_message_append(sd_bus_message *m, const char *types, ...);
int sd_bus_message_append_basic(sd_bus_message *m, char type, const void *p);