SimplePie::get_cache( string $feed_url = '' ): SimplePie\Cache\DataCache

3209    private function get_cache($feed_url = '')3210    {3211        if ($this->cache === null) {3212            // @trigger_error(sprintf('Not providing as PSR-16 cache implementation is deprecated since SimplePie 1.8.0, please use "SimplePie\SimplePie::set_cache()".'), \E_USER_DEPRECATED);3213            $cache = $this->registry->call(Cache::class, 'get_handler', [3214                $this->cache_location,3215                $this->get_cache_filename($feed_url),3216                Base::TYPE_FEED3217            ]);3218 3219            return new BaseDataCache($cache);3220        }3221 3222        return $this->cache;3223    }