### Tasks
- [ ] https://github.com/microsoft/autogen/issues/384
- [ ] https://github.com/microsoft/autogen/issues/385
- [ ] https://github.com/microsoft/autogen/issues/386
- [ ] https://github.com/microsoft/autogen/issues/387
- [ ] https://github.com/microsoft/autogen/issues/388
- [x] remove openai.api_version
- [x] remove openai.api_type
- [x] support [aoai](https://github.com/openai/openai-python/blob/v1/examples/azure.py)
- [x] Response objects are now pydantic models and no longer conform to the dictionary shape.
- [x] headsup about dependency change
- [ ] https://github.com/microsoft/autogen/issues/402
- [x] merge to main
- [ ] https://github.com/microsoft/autogen/issues/442
- [ ] https://github.com/microsoft/autogen/issues/450
- [ ] https://github.com/microsoft/autogen/issues/451
- [ ] https://github.com/microsoft/autogen/issues/476
- [ ] https://github.com/microsoft/autogen/issues/552
- [ ] https://github.com/microsoft/autogen/issues/553
