FIXME: Make TProtocol Optional[TProtocol] to keep types consistent

[Jineshbansal]

What was wrong?

This PR aims to make TProtocol as Optional[TProtocol] to keep types consistent in py-libp2p/libp2p/protocol_muxer/multiselect.py

[Jineshbansal]

Please take a look at this @seetadev , If you tell me some pointers on how to check its reliability, that would be really helpful. Currently I just change the TProtocol as Optional[TProtocol] and totally rely on tests ("tests/core/protocol_muxer/test_protocol_muxer.py", pre-commit tests) to make further changes.

[seetadev]

@Jineshbansal : Great, thank you so much for sharing the PR. Appreciate it.

Definitely, I'll review it.

CCing @sumanjeet0012 and @acul71 for their feedback and review too.

[acul71]

I've seen that windows test failing randomly in other PRs
FAILED tests/core/pubsub/test_gossipsub_px_and_backoff.py::test_peer_exchange

[Jineshbansal]

@acul71 thanks for pointing it out, I will definitely look into this

[seetadev]

@acul71 , @Jineshbansal : Not related, we can ignore this test case. CCing @mystical-prog, who could help fix it via a PR.

@Jineshbansal : Please add newsfragment and more test cases.

[acul71]

@Jineshbansal @seetadev
What's the current status of this ? @Jineshbansal are you still woking on this?

[Jineshbansal]

@acul71 , sorry I couldn't get a time for this, I will finalize my changes in this week