Use unique thought_signature in gemini streamed response

naveen-corpusant · naveen-corpusant · commit 94055c224cb6 · 2025-11-15T00:28:34.000Z
diff --git a/pydantic_ai_slim/pydantic_ai/models/google.py b/pydantic_ai_slim/pydantic_ai/models/google.py
@@ -676,7 +676,7 @@ async def _get_event_iterator(self) -> AsyncIterator[ModelResponseStreamEvent]:
                 if part.thought_signature:
                     signature = base64.b64encode(part.thought_signature).decode('utf-8')
                     yield self._parts_manager.handle_thinking_delta(
-                        vendor_part_id='thinking',
+                        vendor_part_id=uuid4(),
                         signature=signature,
                         provider_name=self.provider_name,
                     )

Original file line number	Diff line number	Diff line change
`@@ -676,7 +676,7 @@ async def _get_event_iterator(self) -> AsyncIterator[ModelResponseStreamEvent]:`
`676`	`676`	`if part.thought_signature:`
`677`	`677`	`signature = base64.b64encode(part.thought_signature).decode('utf-8')`
`678`	`678`	`yield self._parts_manager.handle_thinking_delta(`
`679`		`- vendor_part_id='thinking',`
	`679`	`+ vendor_part_id=uuid4(),`
`680`	`680`	`signature=signature,`
`681`	`681`	`provider_name=self.provider_name,`
`682`	`682`	`)`