code: def http_responder_factory(proto):
          
          return GrowlerHTTPResponder(
              proto,
              request_factory=proto.http_application._request_class,
              response_factory=proto.http_application._response_class,
          )
docs: The default factory function which creates a GrowlerHTTPResponder with
          this object as the parent protocol, and the application's req/res
          factory functions.
  
          To change the default responder, overload this method with the same
          to return your
          own responder.
  
          Params
          ------
          proto : GrowlerHTTPProtocol
              Explicitly passed protocol object (actually it's what would be
              'self'!)
  
          Note
          ----
          This method is decorated with @staticmethod, as the connection_made
          method of GrowlerProtocol explicitly passes `self` as a parameters,
          instead of treating as a bound method.