code: func addKnownTypes(scheme *runtime.Scheme) error {
  	scheme.AddKnownTypes(SchemeGroupVersion,
  		&StorageClass{},
  		&StorageClassList{},
  
  		&VolumeAttachment{},
  		&VolumeAttachmentList{},
  
  		&CSIDriver{},
  		&CSIDriverList{},
  
  		&CSINode{},
  		&CSINodeList{},
  	)
  
  	metav1.AddToGroupVersion(scheme, SchemeGroupVersion)
  	return nil
  }
docs: // Adds the list of known types to the given scheme.