+int sd_bus_reply_method_errorf(sd_bus *bus, sd_bus_message *call, const char *name, const char *format, ...) _sd_printf_(4, 0);
+int sd_bus_reply_method_errno(sd_bus *bus, sd_bus_message *call, int error, const sd_bus_error *e);
+int sd_bus_reply_method_errnof(sd_bus *bus, sd_bus_message *call, int error, const char *format, ...) _sd_printf_(4, 0);
+
+int sd_bus_emit_signal(sd_bus *bus, const char *path, const char *interface, const char *member, const char *types, ...);
+
+int sd_bus_emit_properties_changed_strv(sd_bus *bus, const char *path, const char *interface, char **names);
+int sd_bus_emit_properties_changed(sd_bus *bus, const char *path, const char *interface, const char *name, ...) _sd_sentinel_;
+
+int sd_bus_emit_interfaces_added_strv(sd_bus *bus, const char *path, char **interfaces);
+int sd_bus_emit_interfaces_added(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;
+int sd_bus_emit_interfaces_removed_strv(sd_bus *bus, const char *path, char **interfaces);
+int sd_bus_emit_interfaces_removed(sd_bus *bus, const char *path, const char *interface, ...) _sd_sentinel_;