+/* add an object for watching other object state changes */
+int ubus_register_watch_object(struct ubus_context *ctx, struct ubus_watch_object *obj);
+
+int ubus_watch_object_add(struct ubus_context *ctx, struct ubus_watch_object *obj, uint32_t id);
+
+int ubus_watch_object_remove(struct ubus_context *ctx, struct ubus_watch_object *obj, uint32_t id);
+