CTaskCheckListItem::createFirstCheckList

static function createFirstCheckList($taskId, $userId)
{
	/** @var CheckListFacade $facade */
	$facade = TaskCheckListFacade::class;
	$checkList = new CheckList(0, $userId, $facade, [
		'ENTITY_ID' => $taskId,
		'CREATED_BY' => $userId,
		'TITLE' => 'BX_CHECKLIST_1',
		'PARENT_ID' => 0,
		'SORT_INDEX' => 0,
	]);
	$checkListSaveResult = $checkList->save();

	/** @var CheckList $checkList */
	$checkList = $checkListSaveResult->getData()['ITEM'];

	return $checkList;
}