-void bus_serialize(Manager *m, FILE *f);
-int bus_deserialize_item(Manager *m, const char *line);
+void bus_track_serialize(sd_bus_track *t, FILE *f);
+int bus_track_deserialize_item(char ***l, const char *line);
+int bus_track_coldplug(Manager *m, sd_bus_track **t, char ***l);
+
+int bus_foreach_bus(Manager *m, sd_bus_track *subscribed2, int (*send_message)(sd_bus *bus, void *userdata), void *userdata);