I am a newbie trying to setup a TCP socket connection between a server on my network (PC) and a client on a PI with a NOVA connected. I want to occasionally establish a TCP socket session with my server (public IP address) and send several packets of binary data, receive a response from the server, then close the connection until the next event. Seems simple, I think I can use the Python SDK and the CustomCloud object? but the sendmessage method seems to only take a string. Am I off track here?