void createVendorMeshMessage(@NonNull final Message message) { //Access message
        super.createVendorMeshMessage(message);
        final AccessMessage accessMessage = (AccessMessage) message;
        final byte[] encryptedTransportPDU = encryptUpperTransportPDU(accessMessage);
        MeshLogger.verbose(TAG, "Encrypted upper transport pdu: " + MeshParserUtils.bytesToHex(encryptedTransportPDU, false));
        accessMessage.setUpperTransportPdu(encryptedTransportPDU);
    }
Creates a vendor model mesh message containing an upper transport access pdu

@param message The access message required to create the encrypted upper transport pdu
mesh/src/main/java/no/nordicsemi/android/mesh/transport/UpperTransportLayer.java