code: func ignoreStatusForbiddenFromError(err error) error {
  	if err == nil {
  		return nil
  	}
  	v, ok := err.(autorest.DetailedError)
  	if ok && v.StatusCode == http.StatusForbidden {
  		return nil
  	}
  	return err
  }
docs: // ignoreStatusForbiddenFromError returns nil if the status code is StatusForbidden.
  // This happens when AuthorizationFailed is reported from Azure API.