ccurme 815bfa1913 openai[patch]: support streaming with json_schema response format (#29044) ...

- Stream JSON string content. Final chunk includes parsed representation
(following OpenAI
[docs](https://platform.openai.com/docs/guides/structured-outputs#streaming)).
- Mildly (?) breaking change: if you were using streaming with
`response_format` before, usage metadata will disappear unless you set
`stream_usage=True`.

## Response format

Before:

![Screenshot 2025-01-06 at 11 59
01 AM](https://github.com/user-attachments/assets/e54753f7-47d5-421d-b8f3-172f32b3364d)


After:

![Screenshot 2025-01-06 at 11 58
13 AM](https://github.com/user-attachments/assets/34882c6c-2284-45b4-92f7-5b5b69896903)


## with_structured_output

For pydantic output, behavior of `with_structured_output` is unchanged
(except for warning disappearing), because we pluck the parsed
representation straight from OpenAI, and OpenAI doesn't return it until
the stream is completed. Open to alternatives (e.g., parsing from
content or intermediate dict chunks generated by OpenAI).

Before:

![Screenshot 2025-01-06 at 12 38
11 PM](https://github.com/user-attachments/assets/913d320d-f49e-4cbb-a800-b394ae817fd1)

After:

![Screenshot 2025-01-06 at 12 38
58 PM](https://github.com/user-attachments/assets/f7a45dd6-d886-48a6-8d76-d0e21ca767c6)

2025-01-09 10:32:30 -05:00

..

integration_tests

openai[patch]: support streaming with json_schema response format (#29044)

2025-01-09 10:32:30 -05:00

unit_tests

Revert "integrations[patch]: remove non-required chat param defaults" (#29048)

2025-01-06 14:45:34 -08:00

__init__.py

…