checkpointer: Enter stack for blobs dict in InMemorySaver (#4419)

libs/checkpoint/langgraph/checkpoint/memory/__init__.py

@@ -93,6 +93,7 @@ class InMemorySaver(
         if factory is not defaultdict:
             self.stack.enter_context(self.storage)  # type: ignore[arg-type]
             self.stack.enter_context(self.writes)  # type: ignore[arg-type]
+            self.stack.enter_context(self.blobs)  # type: ignore[arg-type]
 
     def __enter__(self) -> "InMemorySaver":
         return self.stack.__enter__()

libs/checkpoint/pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "langgraph-checkpoint"
-version = "2.0.24"
+version = "2.0.25"
 description = "Library with base interfaces for LangGraph checkpoint savers."
 authors = []
 license = "MIT"