diff --git a/libs/langgraph/langgraph/_internal/_typing.py b/libs/langgraph/langgraph/_internal/_typing.py
index adaddccef..19854d1c8 100644
--- a/libs/langgraph/langgraph/_internal/_typing.py
+++ b/libs/langgraph/langgraph/_internal/_typing.py
@@ -41,6 +41,7 @@ StateLike: TypeAlias = TypedDictLikeV1 | TypedDictLikeV2 | DataclassLike | BaseM
 It can either be a `TypedDict`, `dataclass`, or Pydantic `BaseModel`.
 Note: we cannot use either `TypedDict` or `dataclass` directly due to limitations in type checking.
 """
+
 MISSING = object()
 """Unset sentinel value."""