Register async human input handler

[ShobhitVishnoi30]

Summary

This PR registers the async version of the human input handler, a_check_termination_and_human_reply, in addition to the sync version. This allows the async a_get_human_input method to be leveraged during async reply generation.

Why are these changes needed?

Without this change, only the sync human input method would get called during async replies. By registering the async handler, we enable async human input when needed.

Changes

• Added self.register_reply() call in __init__ to register ConversableAgent.a_check_termination_and_human_reply

Related issue number

closes 806

Checks

• I've included any doc changes needed for https://microsoft.github.io/autogen/. See https://microsoft.github.io/autogen/docs/Contribute#documentation to build and test documentation locally.
• Verified a_get_human_input gets called as expected during async reply generation.

[ShobhitVishnoi30]

@sonichi @afourney @pcdeadeasy @qingyun-wu @rickyloynd-microsoft can you guys review it.I am not able to add reviewers

[qingyun-wu]

Thanks for the contribution! Is it possible to add a notebook example to demonstrate the usage and utility of this async human reply?

[ShobhitVishnoi30]

Thanks for the contribution! Is it possible to add a notebook example to demonstrate the usage and utility of this async human reply?

yes sure let me do that

[ShobhitVishnoi30]

Please resolve my comment and fix the code format error. You can use pre-commit to do that.

formatting is done

[sonichi]

@qingyun-wu should this notebook be added to the example page?

[momuno]

Hi @sonichi, I just left a comment on this commit. I'm wondering if this PR is a breaking change for other agents in contrib/ that have taken a dependency on the prior register reply order.
Commit comment here:
https://github.com/microsoft/autogen/commit/5c92fb378b4c5db86f020bc15891b30014abb5f7#commitcomment-134094264

[sonichi]

Hi @sonichi, I just left a comment on this commit. I'm wondering if this PR is a breaking change for other agents in contrib/ that have taken a dependency on the prior register reply order. Commit comment here: https://github.com/microsoft/autogen/commit/5c92fb378b4c5db86f020bc15891b30014abb5f7#commitcomment-134094264

I can't see the commit comment. But you are right, teachable agent and retrieve user proxy agent need to be updated.

[ShobhitVishnoi30]

agent

register reply with position argument is being used in text_analyzer_agent , teachable_agent and math_user_proxy_agent.

Do we need to update it to N+1 ??

[momuno]

Hey thanks for the confirmation. I can help with a PR later today if still needed.