public function _initialize()
    {
        try {
            $this->driver = new RedisDriver([
                'host'     => $this->config['host'],
                'port'     => $this->config['port'],
                'database' => $this->config['database']
            ]);
        } catch (\Exception $e) {
            throw new ModuleException(
                __CLASS__,
                $e->getMessage()
            );
        }
    }