PortNum.LORAWAN_BRIDGE / LoraWAN Payload Transport

[fphammerle]

Hi,

  /*
   * LoraWAN Payload Transport
   * ENCODING: compact binary LoRaWAN uplink (10-byte RF metadata + PHY payload) - see LoRaWANBridgeModule
   */
  LORAWAN_BRIDGE = 75;

was added to portnums in
meshtastic/firmware@935b050
meshtastic/protobufs@dee56ba
meshtastic/protobufs#871

I am just curious to check out the mentioned "LoRaWANBridgeModule", but can't find any references:
https://github.com/search?q=org%3Ameshtastic%20LoRaWANBridgeModule&type=code
https://www.google.com/search?q=meshtastic+"LoRaWANBridgeModule"

Does anyone know any details?

Thanks!