highloadblock.php

См. документацию.

<?php
 
namespace Bitrix\Highloadblock;
 
class HighloadBlock extends \Bitrix\Highloadblock\EO_HighloadBlock
{
    public function getEntityDataClass()
    {
        $entity = \Bitrix\Highloadblock\HighloadBlockTable::compileEntity($this->getId());
        return $entity->getDataClass();
    }
}