Bitrix24Manager::hasPurchasedDiskSpace

static function hasPurchasedDiskSpace()
{
	if(self::$hasPurchasedDiskSpace !== null)
	{
		return self::$hasPurchasedDiskSpace;
	}

	if(
		!(ModuleManager::isModuleInstalled('bitrix24')
		&& Loader::includeModule('bitrix24'))
		&& method_exists('CBitrix24', 'IsExtraDiskSpace')
	)
	{
		return (self::$hasPurchasedDiskSpace = false);
	}

	return (self::$hasPurchasedDiskSpace = CBitrix24::IsExtraDiskSpace());
}