code: func (a APIObjectVersioner) PrepareObjectForStorage(obj runtime.Object) error {
  	accessor, err := meta.Accessor(obj)
  	if err != nil {
  		return err
  	}
  	accessor.SetResourceVersion("")
  	accessor.SetSelfLink("")
  	return nil
  }
docs: // PrepareObjectForStorage clears resource version and self link prior to writing to etcd.