code: def run(self, host='localhost', port=1234):
          
          # Setup loop
          loop = asyncio.get_event_loop()
          coro = asyncio.start_server(self._handle, host, port, loop=loop)
          try:
              server = loop.run_until_complete(coro)
          except Exception as e:
              self._logger.error('Could not launch server: {}'.format(e))
              return
  
          # Run the server
          self._logger.info('Serving on {}'.format(server.sockets[0].getsockname()))
          try:
              loop.run_forever()
          except KeyboardInterrupt:
              pass
  
          # Close the server
          server.close()
          loop.run_until_complete(server.wait_closed())
          loop.close()
docs: Launch the server. Will run forever accepting connections until interrupted.
  
          Parameters:
  
              * host: The host to listen on
              * port: The port to listen on