catalogview.php

См. документацию.

<?php
 
namespace Bitrix\Catalog\Integration\Report\View;
 
use Bitrix\Catalog\Integration\Report\Handler\BaseHandler;
use Bitrix\Report\VisualConstructor\Views\Component\Base;

abstract class CatalogView extends Base implements ViewRenderable
{
    abstract public function getViewHandler(): BaseHandler;
}