Co-authored-by: Chi Wang <wang.chi@microsoft.com>

* Update Examples.md

* Update agent_chat.md

* Update agent_chat.md

* Update Optional-Dependencies.md

* Update JSON_mode_example.ipynb

* Update JSON_mode_example.ipynb

* Update JSON_mode_example.ipynb

* Update JSON_mode_example.ipynb

* Update agentchat_agentoptimizer.ipynb

* Update agentchat_nested_chats_chess.ipynb

* Use code executors in notebook.

* Add custom code executor guide

* Add to gitignore

* Update

* fix links

* link

* typo

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Co-authored-by: Chi Wang <wang.chi@microsoft.com>

* gather_usage_summary has been updated

* updated cost info to 'usage_including_cached_inference' and 'usage_excluding_cached_inference'

* fix: pre-commit formatting for cost_info

* improved cost explanation and doc

* improved cost info doc

* include - exclude

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Co-authored-by: Chi Wang <wang.chi@microsoft.com>

* support llm_config in agentoptimizer

* fix doc

* restore seed timeout

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Co-authored-by: “skzhang1” <“shaokunzhang529@gmail.com”>
Co-authored-by: Chi Wang <wang.chi@microsoft.com>

* Improve readability

* Update context_handling.py

update line breaks according to comment of reviewer

* Update agentchat_groupchat_finite_state_machine.ipynb

corrected sentence according to comment of reviewer

* Update autogen/agentchat/contrib/capabilities/context_handling.py

Co-authored-by: Jack Gerrits <jackgerrits@users.noreply.github.com>

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Co-authored-by: Shaokun Zhang <shaokunzhang529@gmail.com>
Co-authored-by: Jack Gerrits <jackgerrits@users.noreply.github.com>

* Add isort

* Apply isort on py files

* Fix circular import

* Fix format for notebooks

* Fix format

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Co-authored-by: Chi Wang <wang.chi@microsoft.com>

* update

* change tag

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Co-authored-by: AnonymousRepoSub <“shaokunzhang529@outlook.com” >

* draft agent optimizer

* refactor

* remove

* change openai config interface

* notebook

* update blog

* add test

* clean up

* redir

* update

* update interface

* change model name

* move to contrib

* Update autogen/agentchat/contrib/agent_optimizer.py

Co-authored-by: Jack Gerrits <jackgerrits@users.noreply.github.com>

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Co-authored-by: “skzhang1” <“shaokunzhang529@gmail.com”>
Co-authored-by: Beibin Li <BeibinLi@users.noreply.github.com>
Co-authored-by: Jieyu Zhang <jieyuz2@cs.washington.edu>
Co-authored-by: Jack Gerrits <jackgerrits@users.noreply.github.com>

On April 2, 2024 the following API preview releases will be retired and will stop accepting API requests:

2023-03-15-preview
2023-06-01-preview
2023-07-01-preview
2023-08-01-preview

To avoid service disruptions, update to use the latest version 2024-02-15-preview.

https://review.learn.microsoft.com/en-us/azure/ai-services/openai/api-version-deprecation

* nbqa adedd to pre-commit, added black and ruff for notebooks

* polishing

* polishing

* polishing

* first

* first

* update figure

* update figure

* update txt+figure

* format

* blog

* blog update

* format

* update

* update

* rename notebook

* rename

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Co-authored-by: “skzhang1” <“shaokunzhang529@gmail.com”>
Co-authored-by: Qingyun Wu <qingyun.wu@psu.edu>
Co-authored-by: Jieyu Zhang <jieyuz2@cs.washington.edu>