public 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();
}