code: func WithTLSData(s store.Reader, contextName string, m EndpointMeta) (Endpoint, error) {
  	tlsData, err := context.LoadTLSData(s, contextName, DockerEndpoint)
  	if err != nil {
  		return Endpoint{}, err
  	}
  	return Endpoint{
  		EndpointMeta: m,
  		TLSData:      tlsData,
  	}, nil
  }
docs: // WithTLSData loads TLS materials for the endpoint