add: std::string sig;
context: launch_test_app(RecentAppsTestAppId id, const int32 *flags){	entry_ref ref;	status_t err = get_test_app_ref(id, &ref);		// Set the attributes	if (!err)		err = set_test_app_attributes(&ref, kRecentAppsTestAppSigs[id], flags);		// Launch the app	if (!err) {		BRoster roster;		err = roster.Launch(&ref);	}	// Give it time to do its thing	if (!err)		snooze(250000);	return err;}