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• This is a feature request, not a bug report or usage question.
• I added a clear and descriptive title that summarizes the feature request.
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Feature Description

Implement a raw_response field on AIMessage responses configurable via include_raw_response=True flag on chat models and per-invocation. Default to False.

During stream chunk merging, responses are kept as a list from each chunk.

Use Case

Debugging

Proposed Solution

Proof of concept: #32926

Alternatives Considered

No response

Additional Context

No response