Incorrect JSON Format for PHP Serialization

[ryan-timothy-albert]

The serialization of the paymentMethod property in the NewPayment class is not producing the desired JSON format. The generated JSON encompasses the payment method object in quotes, treating it as a string. This is being caused by the type in NewPayment where it defines the NewPayment property in itself. It annotates the object as "mixed" but it should be "TheLogicStudio\ExactPayments\Models\Operations\PaymentMethod".

The effect of the "mis-serialization" is the exact server returning a 400 Bad request & not being able to process the payment.

Expected JSON request:
{
...
"paymentMethod": {"token": "$TOKEN"}
}
Actual Behavior
{
"paymentMethod": "{"token":"$TOKEN"}"
}

A simple change of the annotation in Models\Shared\NewPayment.php fixes the issue. I would've made a pull request but as this repo is handled by speakeasy I wasn't sure of the procedure 🙌

https://github.com/speakeasy-sdks/exactpayments-php/issues