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

    public static function argPostsPerPage(Query $query, $value, &$q)
    {
        if ($query->isSingle) {
            $query->setSize(1);
        } elseif ($value == '-1') {
            $query->setSize(10000000);
        } else {
            $query->setSize((int) $value);
        }
    }