code: func dumpJSON(v interface{}) string {
  	buf := bytes.NewBuffer(nil)
  	enc := json.NewEncoder(buf)
  	enc.SetIndent("", "  ")
  	if err := enc.Encode(v); err != nil {
  		return err.Error()
  	}
  	return string(buf.Bytes())
  }
docs: // For debugging