};
Machine* machine_new(Manager *manager, MachineClass class, const char *name);
-void machine_free(Machine *m);
+Machine* machine_free(Machine *m);
bool machine_may_gc(Machine *m, bool drop_not_started);
void machine_add_to_gc_queue(Machine *m);
int machine_start(Machine *m, sd_bus_message *properties, sd_bus_error *error);