code: func ParseAlias(val string) (string, string, error) {
  	if val == "" {
  		return "", "", errors.New("empty string specified for alias")
  	}
  	arr := strings.Split(val, ":")
  	if len(arr) > 2 {
  		return "", "", fmt.Errorf("bad format for alias: %s", val)
  	}
  	if len(arr) == 1 {
  		return val, val, nil
  	}
  	return arr[0], arr[1], nil
  }
docs: // ParseAlias parses and validates the specified string as an alias format (name:alias)