code: func (s *SnapshotDeleteService) buildURL() (string, url.Values, error) {
  	// Build URL
  	path, err := uritemplates.Expand("/_snapshot/{repository}/{snapshot}", map[string]string{
  		"repository": s.repository,
  		"snapshot":   s.snapshot,
  	})
  	if err != nil {
  		return "", url.Values{}, err
  	}
  	return path, url.Values{}, nil
  }
docs: // buildURL builds the URL for the operation.