code: func (s NetworkSettings) SplitPort(index int) (uint16, string) {
  	ptProt, _ := s.PortAt(index)
  	vect := strings.Split(ptProt, "/")
  	port, _ := strconv.ParseUint(vect[0], 10, 16)
  	return uint16(port), vect[1]
  }
docs: // SplitPort splits port number and protocol name from Ports string.