code: def _send_receive(self, payload):
          
          s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
          s.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
          s.settimeout(self.connection_timeout)
          s.connect((self.address, self.port))
          s.send(payload)
          data = s.recv(1024)
          s.close()
          return data
docs: Send single buffer `payload` and receive a single buffer.
          
          Args:
              payload(bytes): Data to send.