patch: fix return type of Topic.update #4029

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Merged

Mar 26, 2025

libs/langgraph/langgraph/channels/topic.py

-Original file line number
+Diff line change
@@ -1,4 +1,4 @@
     from typing import Any, Generic, Iterator, Optional, Sequence, Type, Union
     from typing_extensions import Self
@@ Expand Down Expand Up / @@ -62,7 +62,7 @@ @@
                     empty.values = checkpoint
             return empty
-        def update(self, values: Sequence[Union[Value, list[Value]]]) -> None:
+        def update(self, values: Sequence[Union[Value, list[Value]]]) -> bool:
             current = list(self.values)
             if not self.accumulate:
                 self.values = list[Value]()
@@ Expand Down @@

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