code: func getIP(showAddress string) string {
  	list := strings.SplitN(showAddress, ":", 2)
  	if len(list) != 2 {
  		return ""
  	}
  	return strings.TrimSpace(list[1])
  }
docs: // getIP gets ip from showAddress (e.g. "IP Address: 10.96.0.4").