new_contents: """
  tcp_client.py
  """
  import socket
  import json
  client_s = socket.socket()
  host = socket.gethostname()
  port = 12345
  print("about to connect")
  client_s.connect((host, port))
  message = json.loads(client_s.recv(1024).decode("utf-8"))
  print(message)
  lst = [1, 4, 4]
  client_s.send(json.dumps(lst).encode("utf-8"))
  # chat program:
  while True:
      custom_msg = input("-> ")
      custom_msg = str(custom_msg)
      client_s.send(json.dumps(custom_msg).encode("utf-8"))
      if custom_msg == "q":
          client_s.close()
          break
  
subject: add the tcp_client program - another leg of chat program