Deprecation functions - PHP 8.1

[lamp5]

I can see a lot of deprecations when try to use id on PHP 8.1
`Deprecated: DOMDocument::createElement(): Passing null to parameter #2 ($value) of type string is deprecated in /var/www/vendor/gabrielbull/ups-api/src/Entity/PickupType.php on line 46

Deprecated: DOMDocument::createElement(): Passing null to parameter #2 ($value) of type string is deprecated in /var/www/vendor/gabrielbull/ups-api/src/Entity/Service.php on line 160

Deprecated: DOMDocument::createElement(): Passing null to parameter #2 ($value) of type string is deprecated in /var/www/vendor/gabrielbull/ups-api/src/Entity/ShipTo.php on line 145

Deprecated: DOMDocument::createElement(): Passing null to parameter #2 ($value) of type string is deprecated in /var/www/vendor/gabrielbull/ups-api/src/Entity/ShipTo.php on line 146

Deprecated: DOMDocument::createElement(): Passing null to parameter #2 ($value) of type string is deprecated in /var/www/vendor/gabrielbull/ups-api/src/Entity/PackagingType.php on line 96

Deprecated: DOMDocument::createElement(): Passing null to parameter #2 ($value) of type string is deprecated in /var/www/vendor/gabrielbull/ups-api/src/Entity/UnitOfMeasurement.php on line 105

Deprecated: DOMDocument::createElement(): Passing null to parameter #2 ($value) of type string is deprecated in /var/www/vendor/gabrielbull/ups-api/src/Entity/UnitOfMeasurement.php on line 105`

[Wilburunion]

Worked in php 7.4 upgraded to 8.1 and lots of things broke

It appears " $this->getDescription())); " has to be changed to " $this->getDescription()?: "")); " on the listed lines above to escape passing the NULL

[WouterSteen]

Add this one to the list: src/Entity/Translate.php

        $node->appendChild($document->createElement('LanguageCode', $this->getLanguageCode() ?? ''));

[szczesuil]

Is there a plan to upgrade this to work with php 8.1?

[jav666]

we have the php-ups-api running under PHP 8.2 without any problems.