Contao\Automator::purgeInternalCache PHP Method

    public function purgeInternalCache()
    {
        $command = new ContaoCacheClearer(\System::getContainer()->get('filesystem'));
        $command->clear(\System::getContainer()->getParameter('kernel.cache_dir'));
        // Add a log entry
        $this->log('Purged the internal cache', __METHOD__, TL_CRON);
    }