private void createControlMessage() {
        final ProxyConfigMessage proxyConfigMessage = (ProxyConfigMessage) mMeshMessage;
        final int opCode = proxyConfigMessage.getOpCode();
        final byte[] parameters = proxyConfigMessage.getParameters();
        message = mMeshTransport.createProxyConfigurationMessage(mSrc, mDst, opCode, parameters);
        proxyConfigMessage.setMessage(message);
    }
Creates the control message to be sent to the node
mesh/src/main/java/no/nordicsemi/android/mesh/transport/ProxyConfigMessageState.java