PHP 8.2 compatibility - jsonSerialize deprecation warning

[deegital]

PHP Deprecated: Return type of AboutYou\Cloud\AdminApi\Models\ApiObject::jsonSerialize() should either be compatible with JsonSerializable::jsonSerialize(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /app/vendor/aboutyou-cloud/admin-api/lib/Models/ApiObject.php on line 72

[mgoniwiecha]

I got also the deprecation notice with php 8.2.

In other Projects like ramsy/uuid it was fixed by adding the attribute #[\ReturnTypeWillChange] right before the method. Older php versions (<= php 7.4) ignore the attribute.