Sorry I submitted this to the wrong project.

Hey, it looks like the WSDL lib has been updated and this library needs to update the extended classes to match.

This commit appears to be the culprit.
WsdlToPhp/PackageBase@0142e31

If there's an easy way to update these classes, that'd be great. It not, we can manually update each one.

Hey @mdlutz24,

Drupal commerce_fedex is now facing deprecation warnings for a long time with another dependent package wsdltophp/packagebase.

Example
Deprecated function: Return type of WsdlToPhp\PackageBase\AbstractStructBase::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in include() (line 5 of C:\xampp\htdocs\ecommerce\vendor\wsdltophp\packagebase\src\AbstractStructBase.php)

Since the composer.json was last updated with wsdltophp/packagebase: ^2.2.2 and php: >=5.3.3, which is now outdated.

As we can notice that both wsdltophp/packagebase and PHP has now been upgraded to 5.0.3 and ^8.1 respectively.

It would be great that this package should receive an upgrade with its dependencies, so that we can continuous to access this package.