int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error);
int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error);
-int manager_start_scope(Manager *manager, const char *scope, pid_t pid, const char *slice, const char *description, sd_bus_message *more_properties, sd_bus_error *error, char **job);
int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job);
int manager_kill_unit(Manager *manager, const char *unit, int signo, sd_bus_error *error);
int manager_unref_unit(Manager *m, const char *unit, sd_bus_error *error);