protected function getLanguage()
    {
        $output = [];
        // Get the language that be for default.
        $default_id = $this->languageManager->getDefaultLanguage()->getId();
        foreach ($this->languageManager->getLanguages() as $key => $value) {
            if ($default_id == $key) {
                $output[] = '';
            } else {
                $output[] = 'language.' . $value->getId();
            }
        }
        return $output;
    }