code: func (id *SpiffeIDService) URI() *url.URL {
  	var result url.URL
  	result.Scheme = "spiffe"
  	result.Host = id.Host
  	result.Path = fmt.Sprintf("/ns/%s/dc/%s/svc/%s",
  		id.Namespace, id.Datacenter, id.Service)
  	return &result
  }
docs: // URI returns the *url.URL for this SPIFFE ID.