* Validate the OpenAI API key format

Increase the amount of internal validation for OpenAI API keys. The intent is
to shorten the debugging loop in case of typos. The changes do *not* add
validation for Azure OpenAI API keys.

* Add the validation in `__init__` of `OpenAIClient`.

* Introduce the `MOCK_OPEN_AI_API_KEY` constant for testing.

*  Add unit test coverage for the `is_valid_api_key` function.

* Validate the OpenAI API key format

Increase the amount of internal validation for OpenAI API keys. The intent is
to shorten the debugging loop in case of typos. The changes do *not* add
validation for Azure OpenAI API keys.

* Add the validation in `__init__` of `OpenAIClient`.

* Introduce the `MOCK_OPEN_AI_API_KEY` constant for testing.

*Add unit test coverage for the `is_valid_api_key` function.

* Log a warning when register a default client fails.

* Validate the OpenAI API key format

Increase the amount of internal validation for OpenAI API keys. The intent is
to shorten the debugging loop in case of typos. The changes do *not* add
validation for Azure OpenAI API keys.

* Add the validation in `__init__` of `OpenAIClient`. We'll log a
  warning when the OpenAI API key isn't valid.

* Introduce the `MOCK_OPEN_AI_API_KEY` constant for testing.

* Add unit test coverage for the `is_valid_api_key` function.

* Check for OpenAI base_url before API key validation

---------

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

* initiate_chats enhancements

* callable summary_method

* summary method

* summary method default

* docstr

* add timeout to slient pip install test

* consolidate_chat_info

* a_initiate_chat

* AssertionError test

* update tests

---------

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

* code executor

* test

* revert to main conversable agent

* prepare for pr

* kernel

* run open ai tests only when it's out of draft status

* update workflow file

* revert workflow changes

* ipython executor

* check kernel installed; fix tests

* fix tests

* fix tests

* update system prompt

* Update notebook, more tests

* notebook

* raise instead of return None

* allow user provided code executor.

* fixing types

* wip

* refactoring

* polishing

* fixed failing tests

* resolved merge conflict

* fixing failing test

* wip

* local command line executor and embedded ipython executor

* revert notebook

* fix format

* fix merged error

* fix lmm test

* fix lmm test

* move warning

* name and description should be part of the agent protocol, reset is not as it is only used for ConversableAgent; removing accidentally commited file

* version for dependency

* Update autogen/agentchat/conversable_agent.py

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

* ordering of protocol

* description

* fix tests

* make ipython executor dependency optional

* update document optional dependencies

* Remove exclude from Agent protocol

* Make ConversableAgent consistent with Agent

* fix tests

* add doc string

* add doc string

* fix notebook

* fix interface

* merge and update agents

* disable config usage in reply function

* description field setter

* customize system message update

* update doc

---------

Co-authored-by: Davor Runje <davor@airt.ai>
Co-authored-by: Jack Gerrits <jackgerrits@users.noreply.github.com>
Co-authored-by: Aaron <aaronlaptop12@hotmail.com>
Co-authored-by: Chi Wang <wang.chi@microsoft.com>