func MSetForUid(id int, keys, values []string) error {
	_settings, err := getSettingsForUid(id)
	if err != nil {
		return err
	}

	if err = _MSet(_settings.user, keys, values); err != nil {
		return err
	}
	if _settings.useKDE {
		return _MSet(_settings.kde, keys, values)
	}
	return nil
}
func MSetForUid(id int, keys, values []string) error {
	_settings, err := getSettingsForUid(id)
	if err != nil {
		return err
	}

	if err = _MSet(_settings.user, keys, values); err != nil {
		return err
	}
	if _settings.useKDE {
		return _MSet(_settings.kde, keys, values)
	}
	return nil
}
// MSetForUid sets multiple values of the environment variables named by the
// keys that affects a particular user.
// It returns an error, if any.