private function importCustomBundlesTranslationFiles(ImportCommand $importCommand)
    {
        $imported = 0;

        foreach ($importCommand->getBundles() as $bundle) {
            $importCommand->setDefaultBundle(strtolower($bundle));

            try {
                $imported += $this->importSingleBundleTranslationFiles($importCommand);
            } catch (TranslationsNotFoundException $e) {
                continue;
            }
        }

        return $imported;
    }