code: func SetKubernetesDefaults(config *Config) error {
  	if len(config.UserAgent) == 0 {
  		config.UserAgent = DefaultKubernetesUserAgent()
  	}
  	return nil
  }
docs: // SetKubernetesDefaults sets default values on the provided client config for accessing the
  // Kubernetes API or returns an error if any of the defaults are impossible or invalid.