nikk0o046 b1c7de98f5 fix(deepseek): convert tool output arrays to strings (#31913) ... ## Description When ChatDeepSeek invokes a tool that returns a list, it results in an openai.UnprocessableEntityError due to a failure in deserializing the JSON body. The root of the problem is that ChatDeepSeek uses BaseChatOpenAI internally, but the APIs are not identical: OpenAI v1/chat/completions accepts arrays as tool results, but Deepseek API does not. As a solution added `_get_request_payload` method to ChatDeepSeek, which inherits the behavior from BaseChatOpenAI but adds a step to stringify tool message content in case the content is an array. I also add a unit test for this. From the linked issue you can find the full reproducible example the reporter of the issue provided. After the changes it works as expected. Source: [Deepseek docs](https://api-docs.deepseek.com/api/create-chat-completion/)  Source: [OpenAI docs](https://platform.openai.com/docs/api-reference/chat/create)  ## Issue Fixes #31394 ## Dependencies: No new dependencies. ## Twitter handle: Don't have one. --------- Co-authored-by: Mason Daugherty <github@mdrxy.com> Co-authored-by: Mason Daugherty <mason@langchain.dev>		2025-07-16 12:19:44 -04:00
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integration_tests	deepseek[patch]: ruff fixes and rules (#31901)	2025-07-07 21:54:44 -04:00
unit_tests	fix(deepseek): convert tool output arrays to strings (#31913)	2025-07-16 12:19:44 -04:00
__init__.py