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chore: rename DiffChannel/DiffDelta/DiffChainValue to Delta* across libs

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Renames the diff-channel types to DeltaChannel, DeltaValue, and DeltaChainValue
for consistency with the settled naming convention.
This commit is contained in:
Sydney Runkle
2026-04-22 14:03:37 -04:00
parent ed9711fd33
commit b799b95138
16 changed files with 313 additions and 128 deletions
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libs/checkpoint-postgres/langgraph/checkpoint/postgres/__init__.py
+2 -2
View File
@@ -438,7 +438,7 @@ class PostgresSaver(BasePostgresSaver):
*,
cur: Any = None,
) -> dict[str, Any]:
from langgraph.checkpoint.base import DiffChainValue
from langgraph.checkpoint.base import DeltaChainValue
result: dict[str, Any] = {}
for channel, current_payload in diff_channel_payloads.items():
@@ -469,7 +469,7 @@ class PostgresSaver(BasePostgresSaver):
break
payloads.reverse()
result[channel] = DiffChainValue(
result[channel] = DeltaChainValue(
base=base, deltas=[p["d"] for p in payloads]
)
return result
libs/checkpoint-postgres/langgraph/checkpoint/postgres/aio.py
+2 -2
View File
@@ -399,7 +399,7 @@ class AsyncPostgresSaver(BasePostgresSaver):
*,
cur: Any,
) -> dict[str, Any]:
from langgraph.checkpoint.base import DiffChainValue
from langgraph.checkpoint.base import DeltaChainValue
result: dict[str, Any] = {}
for channel, current_payload in diff_channel_payloads.items():
@@ -430,7 +430,7 @@ class AsyncPostgresSaver(BasePostgresSaver):
break
payloads.reverse()
result[channel] = DiffChainValue(
result[channel] = DeltaChainValue(
base=base, deltas=[p["d"] for p in payloads]
)
return result
libs/checkpoint-postgres/langgraph/checkpoint/postgres/base.py
+1 -1
View File
@@ -223,7 +223,7 @@ class BasePostgresSaver(BaseCheckpointSaver[str]):
*,
cur: Any = None,
) -> dict[str, Any]:
"""Override in sync/async subclasses. Resolves diff-chain blobs to DiffChainValue."""
"""Override in sync/async subclasses. Resolves diff-chain blobs to DeltaChainValue."""
raise NotImplementedError
def _dump_blobs(