code: func (s *serviceAccount) ValidateInitialization() error {
  	if s.client == nil {
  		return fmt.Errorf("missing client")
  	}
  	if s.secretLister == nil {
  		return fmt.Errorf("missing secretLister")
  	}
  	if s.serviceAccountLister == nil {
  		return fmt.Errorf("missing serviceAccountLister")
  	}
  	return nil
  }
docs: // ValidateInitialization ensures an authorizer is set.