From 10859da99af731a575aec3e5976bde514b25ca96 Mon Sep 17 00:00:00 2001
From: William Fu-Hinthorn <13333726+hinthornw@users.noreply.github.com>
Date: Mon, 24 Mar 2025 17:12:50 -0700
Subject: [PATCH] Handle sneds

---
 libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py | 4 ++++
 libs/checkpoint/pyproject.toml                         | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py b/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py
index 045b8f5d4..531edd185 100644
--- a/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py
+++ b/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py
@@ -554,6 +554,10 @@ def _msgpack_ext_hook_to_json(code: int, data: bytes) -> Any:
                 ext_hook=_msgpack_ext_hook_to_json,
                 option=ormsgpack.OPT_NON_STR_KEYS,
             )
+            if tup[0] == "langgraph.types" and tup[1] == "Send":
+                from langgraph.types import Send  # type: ignore
+
+                return Send(*tup[2])
             # module, name, args
             return tup[2]
         except Exception:
diff --git a/libs/checkpoint/pyproject.toml b/libs/checkpoint/pyproject.toml
index 555d13a17..0425caf7e 100644
--- a/libs/checkpoint/pyproject.toml
+++ b/libs/checkpoint/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "langgraph-checkpoint"
-version = "2.0.22"
+version = "2.0.23"
 description = "Library with base interfaces for LangGraph checkpoint savers."
 authors = []
 license = "MIT"