code: func (s DeviceSession) GetMACVersion() lorawan.MACVersion {
  	if strings.HasPrefix(s.MACVersion, "1.1") {
  		return lorawan.LoRaWAN1_1
  	}
  
  	return lorawan.LoRaWAN1_0
  }
docs: // GetMACVersion returns the LoRaWAN mac version.