py3.9

langgraph/checkpoint/sqlite.py

@@ -28,10 +28,10 @@ class SqliteSaver(BaseCheckpointSaver, AbstractContextManager):
 
     def __exit__(
         self,
-        __exc_type: type[BaseException] | None,
-        __exc_value: BaseException | None,
-        __traceback: TracebackType | None,
-    ) -> bool | None:
+        __exc_type: Optional[type[BaseException]],
+        __exc_value: Optional[BaseException],
+        __traceback: Optional[TracebackType],
+    ) -> Optional[bool]:
         return self.conn.close()
 
     def setup(self) -> None: