LimitManager::getInstance

static function getInstance(): LimitManager
{
	if (static::$instance === null)
	{
		if (BitrixMainLoader::includeModule('bitrix24'))
		{
			static::$instance = new LimitManagerBitrix24();
		}
		else
		{
			static::$instance = new LimitManagerBox();
		}
	}

	return static::$instance;
}