Wallmander\ElasticsearchIndexer\Model\Query\WpConverter::argPostType PHP Method

    public static function argPostType(Query $query, $value, &$q)
    {
        if ($value == 'any' || isset($value[0]) && $value[0] == 'any') {
            $pt = Indexer::getSearchablePostTypes();
            $query->where('post_type', array_values($pt));
        } else {
            $query->where('post_type', $value);
        }
    }