code: func GetTag(image string) string {
  	if !strings.Contains(image, ":") {
  		return DefaultVersion
  	}
  
  	parts := strings.Split(image, ":")
  	if len(parts) != 2 {
  		return WrongVersion
  	}
  
  	return parts[len(parts)-1]
  }
docs: // GetTag reture image tag