From ffda8b5472c01596d4a3087392b8cb520669aa9e Mon Sep 17 00:00:00 2001 From: Sydney Runkle Date: Tue, 21 Apr 2026 10:58:09 -0400 Subject: [PATCH] =?UTF-8?q?chore:=20rename=20serde=20type=20tag=20"diff"?= =?UTF-8?q?=20=E2=86=92=20"delta"=20for=20DeltaValue?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Consistent with channel/type naming (DeltaChannel, DeltaValue). Co-Authored-By: Claude Sonnet 4.6 --- libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py | 4 ++-- libs/checkpoint/tests/test_jsonplus.py | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py b/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py index ca72954a5..dfa8c2748 100644 --- a/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py +++ b/libs/checkpoint/langgraph/checkpoint/serde/jsonplus.py @@ -246,7 +246,7 @@ class JsonPlusSerializer(SerializerProtocol): elif isinstance(obj, bytearray): return "bytearray", obj elif _is_delta_value(obj): - return "diff", _msgpack_enc({"d": obj.delta, "c": obj.prev_checkpoint_id}) + return "delta", _msgpack_enc({"d": obj.delta, "c": obj.prev_checkpoint_id}) else: try: return "msgpack", _msgpack_enc(obj) @@ -269,7 +269,7 @@ class JsonPlusSerializer(SerializerProtocol): return ormsgpack.unpackb( data_, ext_hook=self._unpack_ext_hook, option=ormsgpack.OPT_NON_STR_KEYS ) - elif type_ == "diff": + elif type_ == "delta": from langgraph.checkpoint.base import DeltaValue # lazy import raw = ormsgpack.unpackb( diff --git a/libs/checkpoint/tests/test_jsonplus.py b/libs/checkpoint/tests/test_jsonplus.py index 843e762ae..1c8549e10 100644 --- a/libs/checkpoint/tests/test_jsonplus.py +++ b/libs/checkpoint/tests/test_jsonplus.py @@ -994,7 +994,7 @@ def test_delta_value_serde_round_trip() -> None: delta=[{"type": "human", "content": "hi"}], prev_checkpoint_id="abc-123" ) type_tag, blob = serde.dumps_typed(original) - assert type_tag == "diff" + assert type_tag == "delta" loaded = serde.loads_typed((type_tag, blob)) assert isinstance(loaded, DeltaValue) assert loaded.delta == original.delta