code: def _send_packet(self, data):
          " Send to server. "
          data = json.dumps(data).encode('utf-8')
  
          # Be sure that our socket is blocking, otherwise, the send() call could
          # raise `BlockingIOError` if the buffer is full.
          self.socket.setblocking(1)
  
          self.socket.send(data + b'\0'f _send_packet(self, data):
          " Send to server. "
          data = json.dumps(data).encode('utf-8')
  
          # Be sure that our socket is blocking, otherwise, the send() call could
          # raise `BlockingIOError` if the buffer is full.
          self.socket.setblocking(1)
  
          self.socket.send(data + b'\0')
docs: Send to server.