Invalid type for variable 'due_date'. Required value type is date and passed type was NoneType at ['due_date']

[felipecao]

Hello, everyone! And thanks for the amazing work building this SDK!

While developing an integration with apideck in Python, I noticed an inconsistency between the SDK and the API when trying to create a Bill.

I've tried issuing a POST https://unify.apideck.com/accounting/bills without a due date and it works fine. Nevertheless, if I try to do the same via the SDK, I get an error message saying apideck.exceptions.ApiTypeError: Invalid type for variable 'due_date'. Required value type is date and passed type was NoneType at ['due_date'].

On top of that, if I take a look at the documentation available for due_date within bill.py, it says the following: due_date (date): The due date is the date on which a payment is scheduled to be received - YYYY-MM-DD.. [optional] # noqa: E501

I must say I'm a bit confused, not knowing whether a due date is actually mandatory or not when creating a bill. Could you please clarify that?

I've put together a small demo project to reproduce the error: https://github.com/felipecao/apideck-due-date-error-demo

Thanks! Wishing y'all a great week!