python-o365: PYTZ removal causes errors in latest release

I’m trying to upgrade to the latest O365 release (2.0.31), with no changes to my code I get this error:

TypeError: timezone() argument 1 must be datetime.timedelta, not str

The call I’m making is this:

account = Account( credentials, token_backend=token_backend, timezone=("UTC"), main_resource=main_resource )

If I remove the timezone from the call:

account = Account( credentials, token_backend=token_backend, main_resource=main_resource )

I get this error:

2023-10-05 17:33:42.688 WARNING (MainThread) [py.warnings] /HADev/Hassio/dev-config/O365/utils/windows_tz.py:638: PytzUsageWarning: The zone attribute is specific to pytz's interface; please migrate to a new time zone provider. For more details on how to do so, see https://pytz-deprecation-shim.readthedocs.io/en/latest/migration.html
  iana_tz.zone if isinstance(iana_tz, tzinfo) else iana_tz)

Is this expected, or is there a timezone parameter I can pass in which will remove the warning? I’ve tried passing in timedelta(microseconds=0) as implied in the first error, but I get the same as the second error.

It’s probably me just missing something, but I can’t see what it is.