code: def setup(self, address, port):
          
          address = str(address)
          port = int(port)
          self._socket = socket.socket()
          self._socket.connect((address, port))
          self._socket.send(b'HELLO 1.0\n')
          with self._socket.makefile() as f:
              if f.readline().strip() != 'OK':
                  raise RuntimeError('Protocol not supported')
docs: Connects to server at `address`:`port`.
  
          Connects to a TCP server listening at `address`:`port` that implements
          the protocol described in the file "Generic TCP I:O Protocol.md"
  
          @arg address IP or address to connect to.
          @arg port port to connect to.
  
          @throw RuntimeError if connection was successiful but protocol isn't
                 supported.
          @throw any exception thrown by `socket.socket`'s methods.