* Added an 'auto' mode to last_n_messages
* Added tests for the last_n_messages = 'auto' mode
* Added test one additional test case that was overlooked.
* Handled possible IndexError in ConversableAgent.last_message method with more clear error message and added test in test_conversable_agent.py.
* Fix code formatting issues.
---------
Co-authored-by: Chi Wang <wang.chi@microsoft.com>
* Replace `assert`s in the `conversable_agent` module with `if-log-raise`.
* Use a `logger` object in the `code_utils` module.
* Replace use of `assert` with `if-log-raise` in the `code_utils` module.
* Replace use of `assert` in the `math_utils` module with `if-not-raise`.
* Replace `assert` with `if` in the `oai.completion` module.
* Replace `assert` in the `retrieve_utils` module with an if statement.
* Add missing `not`.
* Blacken `completion.py`.
* Test `generate_reply` and `a_generate_reply` raise an assertion error
when there are neither `messages` nor a `sender`.
* Test `execute_code` raises an `AssertionError` when neither code nor
filename is provided.
* Test `split_text_to_chunks` raises when passed an invalid chunk mode.
* * Add `tiktoken` and `chromadb` to test dependencies as they're used in
the `test_retrieve_utils` module.
* Sort the test requirements alphabetically.
* minor fix for stablility
* fix format
* fix format
* update run_code logic
* format
* Update conversable_agent.py
* fix format
* Update conversable_agent.py
* add tests
* fix format
* revert changes
