func (s *UserConversion) ConvertToAccessToken(user interface{}, token *oapi.OAuthAccessToken) error {
	info, ok := user.(kuser.Info)
	if !ok {
		return errors.New("did not receive user.Info")
	}
	token.UserName = info.GetName()
	if token.UserName == "" {
		return errors.New("user name is empty")
	}
	token.UserUID = info.GetUID()
	return nil
}
func (u *testUser) ConvertToAccessToken(_ interface{}, token *api.OAuthAccessToken) error {
	token.UserName = u.UserName
	token.UserUID = u.UserUID
	return u.Err
}