code: def connection_made(self, transport):
          
          self.transport = transport
          self.responders = [self.make_responder(self)]
  
          try:
              good_func = callable(self.responders[0].on_data)
          except AttributeError:
              good_func = False
  
          if not good_func:
              err_str = "Provided responder MUST implement an 'on_data' method"
              raise TypeError(err_str)
  
          log_info = (id(self), self.remote_hostname, self.remote_port)
          log.info("{:d} connection from {}:{}", *log_info)
docs: (asyncio.Protocol member)
  
          Called upon when there is a new socket connection.
          This creates a new responder (as determined by the member
          'responder_type') and stores in a list.
          Incoming data from this connection will always call on_data
          to the last element of this list.
  
          Args:
              transport (asyncio.Transport): The Transport handling the
                  socket communication