code: def _get_info(self, host, port, unix_socket, auth):
          
  
          client = self._client(host, port, unix_socket, auth)
          if client is None:
              return None
  
          info = client.info()
          del client
          return info
docs: Return info dict from specified Redis instance
  
  :param str host: redis host
  :param int port: redis port
  :rtype: dict