code: def sendto(self, transport, addr):
          
          msg = bytes(self) + b'\r\n'
          logger.debug("%s:%s < %s", *(addr + (self,)))
          transport.sendto(msg, addr)
docs: Send request to a given address via given transport.
  
          Args:
              transport (asyncio.DatagramTransport):
                  Write transport to send the message on.
              addr (Tuple[str, int]):
                  IP address and port pair to send the message to.