public function makeInstance()
    {
        $class = $this->getVersionedRedisSentinelManagerClass();
        $config = $this->config->get('database.redis-sentinel', [ ]);
        $driver = Arr::pull($config, 'client', 'predis');

        // Laravel 5.7 introduced the app as the first parameter:
        if ($this->appVersionLessThan('5.7')) {
            return new RedisSentinelManager(new $class($driver, $config));
        }

        return new RedisSentinelManager(new $class($this->app, $driver, $config));

    }