// volumeAttributes of the volume to publish.
  // +optional
  map<string, string> volumeAttributes = 5;

  // controllerPublishSecretRef is a reference to the secret object containing
  // sensitive information to pass to the CSI driver to complete the CSI
  // ControllerPublishVolume and ControllerUnpublishVolume calls.
  // This field is optional, and may be empty if no secret is required. If the