Очистка highloadblock -блока через API битрикс

CModule::IncludeModule('highloadblock');
use Bitrix\Highloadblock as HL;
use Bitrix\Main\Entity;

$hlblockId = HL\HighloadBlockTable::getById(4)->fetch();
$entity = HL\HighloadBlockTable::compileEntity($hlblockId);
$entity_data_class = $entity->getDataClass();
$rsData = $entity_data_class::getList(array(
    "select" => array("ID"),
     "filter" => array()
));
while ($arItem = $rsData->Fetch()) {
    $entity_data_class::delete($arItem["ID"]);
}