DEFINE_TRIVIAL_CLEANUP_FUNC(BusWaitForJobs*, bus_wait_for_jobs_free);
-int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, unsigned *n_changes);
+int bus_deserialize_and_dump_unit_file_changes(sd_bus_message *m, bool quiet, UnitFileChange **changes, size_t *n_changes);
int unit_show_processes(sd_bus *bus, const char *unit, const char *cgroup_path, const char *prefix, unsigned n_columns, OutputFlags flags, sd_bus_error *error);