fix(streaming): propagate stop_details from message_delta into accumulated Message#1469
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xodn348 wants to merge 1 commit intoanthropics:mainfrom
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fix(streaming): propagate stop_details from message_delta into accumulated Message#1469xodn348 wants to merge 1 commit intoanthropics:mainfrom
xodn348 wants to merge 1 commit intoanthropics:mainfrom
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…lated Message The streaming accumulator in both `_messages.py` and `_beta_messages.py` merges `stop_reason` and `stop_sequence` from `message_delta` events but does not propagate `stop_details` (RefusalStopDetails), even though both the `Delta` and `Message` types define this field. This causes `stream.get_final_message().stop_details` to always be `None` when the API returns structured refusal information via streaming. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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What
The streaming accumulator merges
stop_reasonandstop_sequencefrommessage_deltaevents but does not propagatestop_details(RefusalStopDetails), even though both theRawMessageDeltaEvent.DeltaandMessagetypes define this field. This causesstream.get_final_message().stop_detailsto always beNonewhen the API returns structured refusal information via streaming.Fixed in both
_messages.py(non-beta) and_beta_messages.py(beta) paths.Verification