int bus_swap_set_property(Unit *u, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error);
int bus_swap_commit_properties(Unit *u);
int bus_swap_set_property(Unit *u, const char *name, sd_bus_message *message, UnitSetPropertiesMode mode, sd_bus_error *error);
int bus_swap_commit_properties(Unit *u);