feat: added on_agent_final_answer-support to Agent callback_manager

[davidberenstein1957]

Related Issues

• fixes create Argilla integration for haystacknodes haystack-integrations#25

Proposed Changes:

added on_agent_final_answer-support to Agent callback_manager

How did you test it?

N.A.

Notes for the reviewer

@anakin87

Checklist

• I have read the contributors guidelines and the code of conduct
• I have updated the related issue with new insights and changes
• I added unit tests and updated the docstrings
• I've used one of the conventional commit types for my PR title: fix:, feat:, build:, chore:, ci:, docs:, style:, refactor:, perf:, test:.
• I documented my code
• I ran pre-commit hooks and fixed any issue

[CLAassistant]

All committers have signed the CLA.

[anakin87]

Hello, @davidberenstein1957 and welcome!

• Black is set with a line length of 120 characters. You can let pre-commit fix the style for you.
• You should add a (release) note to this PR. You can find more information here.

[davidberenstein1957]

@anakin87 I ran the required instructions

[ZanSara]

Left a couple of nitpicks, otherwise this PR only lacks tests. Could you add some?

[ZanSara]

Let's provide a default implementation like for all the others

[davidberenstein1957]

@ZanSara what do you suggest? I did not want to do this because it might mess with the current use-cases of people.

[davidberenstein1957]

Left a couple of nitpicks, otherwise this PR only lacks tests. Could you add some?

@ZanSara I wanted to implement this in a more sustainable way but was urged to wrap this up as a quick and dirty fix. Also, there don't seem to be any other tests for the callback_manager yet so I think these can be skipped for now. What do you think @anakin87. If not, I would instead implement a proper class as proposed here.

[coveralls]

Pull Request Test Coverage Report for Build 6458327639

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 5 unchanged lines in 1 file lost coverage.
• Overall coverage increased (+0.02%) to 50.341%

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Files with Coverage Reduction	New Missed Lines	%
agents/base.py	5	95.93%

Totals
Change from base Build 6457280690:	0.02%
Covered Lines:	12629
Relevant Lines:	25087

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💛 - Coveralls

[anakin87]

Hey @davidberenstein1957, sorry to keep you waiting...

Although untested, this PR looks very simple and good to me.

To make sure we don't break things, could you reproduce this tutorial using your branch?

It would be nice if you could attach the resulting notebook to this PR...

[davidberenstein1957]

@anakin87, thanks for the guidance. I will make sure to test it and add the resulting notebook to this PR. Do you want me to update the notebook along with generated outputs or is a reference via Colab fine?

[anakin87]

Thanks!

A reference via Colab is fine.

[davidberenstein1957]

@anakin87, I finally managed to find some time to work on this.
https://colab.research.google.com/drive/15Q-7z6ZANrLrywjjDDZe0cYTof_v26kM?usp=sharing

[anakin87]

Thanks @davidberenstein1957!