Message timestamp interface doesn't match confluent_kafka

[MrkGrgsn]

Describe the bug
The Message class in confluent_kafka returns a tuple of timestamp type and the timestamp itself, I infer the type is tuple[int, int] but the corresponding class in mockafka returns int | None.

To Reproduce
Code designed for parsing the timestamp from a confluent_kafka Message will fail:

consumer = FakeConsumer()
consumer.subscribe(["my_topic"])
msg = consumer.poll()
timestamp_type, timestamp = msg.timestamp()  # Results in TypeError: cannot unpack non-iterable int/NoneType object

Expected behavior
I hope that compatibility with confluent_kafka can be maintained!

mockafka-py==0.1.55
confluent-kafka==2.3.0
Python 3.11.8

[alm0ra]

@MrkGrgsn
Thanks for raising this issue,

I will fix it soon.

[massooti]

Take a look #146

now it does supports and its fully compatible with confluent_kafka library timestamp method