* Add isort

* Apply isort on py files

* Fix circular import

* Fix format for notebooks

* Fix format

---------

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

* Update more notebooks to be available on the website

* fix notebook

* update link

* init PR

* update

* update code check

* update

* update

* update

* update

* Test the ability to have agents a,u,t,o,g,e,n speak in turn.

* update

* update

* update

* Evidence that groupchat not terminating because of the TERMINATE substring.

* Raising NoEligibleSpeakerException allows graceful exit before max turns

* update

* To confirm with author that custom function is meant to override graph constraints

* Confirmed the expected test behaviour with author

* Update autogen/agentchat/groupchat.py

* update

* update

---------

Co-authored-by: Joshua Kim <Joshua@spectdata.com>
Co-authored-by: Qingyun Wu <qingyun0327@gmail.com>

Wrong Google Colab URL

Co-authored-by: Eric Zhu <ekzhu@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

* custom model client docs followup

* fix function name in docs

* Update website/docs/Use-Cases/enhanced_inference.md

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

* Update website/docs/Use-Cases/enhanced_inference.md

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

* Update website/docs/Use-Cases/enhanced_inference.md

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

* Update website/docs/Use-Cases/enhanced_inference.md

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

---------

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

* add client interface, response protocol, and move code into openai client class

* add ability to register custom client

* tidy up code

* adding checks and errors, and more unit tests

* remove code

* fix error msg

* add use_docer False in notebook

* better error message

* add another example to custom model notebook

* rename and have register_client take model name too

* make Client protocol and remove inheritance

* renames

* update notebook

* add link

* rename and more error checking for registered agents

* adding message retrieval to client protocol for more flexible response

* fix failing openai test

* api_type req made model_client_cls requirement

* notebook cleanup and added blog

* remove raise error if client list is empty - client list will never be empty it will have placeholders

* rename Client -> ModelClient

* add forgotten file

* fix test by fetching internal client

* Update autogen/oai/client.py

Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>

* don't add retrieval function to cache

* added placeholder cllient class during initial client init, and rewrote registration

* fix spelling

* Update autogen/agentchat/conversable_agent.py

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

* type hints, small fixes, docstr comment

* fix api type checking

---------

Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>
Co-authored-by: Chi Wang <wang.chi@microsoft.com>