int bus_foreach_bus(Manager *m, sd_bus_track *subscribed2, int (*send_message)(sd_bus *bus, void *userdata), void *userdata);
int bus_verify_manage_units_async(Manager *m, sd_bus_message *call, sd_bus_error *error);
int bus_foreach_bus(Manager *m, sd_bus_track *subscribed2, int (*send_message)(sd_bus *bus, void *userdata), void *userdata);
int bus_verify_manage_units_async(Manager *m, sd_bus_message *call, sd_bus_error *error);