docs: async def _make_connection(self):
          """Construct a connection to Redis."""
          return await aioredis.create_redis(
              'redis://{}:{}'.format(
                  self._redis_params.get('host', 'localhost'),
                  self._redis_params.get('port', 6379)
              ),
              db=int(self._redis_params.get('db', 1))
          )