Vsch\TranslationManager\Manager::groupKeyList PHP Method

    protected static function groupKeyList($key)
    {
        $key = explode('.', $key, 2);
        if (count($key) > 1) {
            $group = self::fixGroup($key[0]);
            $key = $key[1];
        } else {
            $group = '';
            $key = $key[0];
        }
        return [$group, $key];
    }