CGroupContext *unit_get_cgroup_context(Unit *u) _pure_;
int unit_write_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);
-int unit_write_drop_in_private_section(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);
+int unit_write_drop_in_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) _printf_attr_(4,5);
+
+int unit_write_drop_in_private(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *data);
+int unit_write_drop_in_private_format(Unit *u, UnitSetPropertiesMode mode, const char *name, const char *format, ...) _printf_attr_(4,5);
+
int unit_remove_drop_in(Unit *u, UnitSetPropertiesMode mode, const char *name);
int unit_kill_context(Unit *u, KillContext *c, bool sigkill, pid_t main_pid, pid_t control_pid, bool main_pid_alien);