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Build streamed OpenAI events before serializing them #1586

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Build streamed OpenAI events before serializing them #1586

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91a21ca
Fall back to model_dump_json for OpenAI payload serialization
brianstrauch Jun 5, 2026
d87adad
Dispatch pydantic models to their own serializer
brianstrauch Jun 5, 2026
0286405
Build streamed events at the source instead of in the converter
brianstrauch Jun 5, 2026
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3 changes: 3 additions & 0 deletions temporalio/contrib/openai_agents/_invoke_model_activity.py
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Original file line number Diff line number Diff line change
Expand Up @@ -393,6 +393,9 @@ async def invoke_model_activity_streaming(
conversation_id=input.get("conversation_id"),
prompt=input.get("prompt"),
):
# OpenAI models set defer_build=True, so an event's pydantic
# schema may still be an unbuilt placeholder.
type(event).model_rebuild()
events.append(event)
events_topic.publish(event)
except APIStatusError as e:
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