code: def run_gevent(self):
          
          from pywb.utils.geventserver import GeventServer, RequestURIWSGIHandler
          logging.info('Starting Gevent Server on ' + str(self.r.port))
          ge = GeventServer(self.application,
                            port=self.r.port,
                            hostname=self.r.bind,
                            handler_class=RequestURIWSGIHandler,
                            direct=True)
docs: Created the server that runs the application supplied a subclass