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Overview Graphs Functional API Pregel Checkpointing Storage Caching Types Runtime Config Errors Constants Channels Agents

LangGraph Checkpoint

Checkpoint Postgres

Checkpoint SQLite

LangGraph Prebuilt

LangGraph Supervisor

LangGraph Swarm

Language

Theme

PythonlanggraphchannelsdeltaDeltaChannelfrom_checkpoint

Method●Since v1.1

from_checkpoint

Copy

from_checkpoint(
    self,
    checkpoint: Any,
) -> Self

View source on GitHub

Initialize from a stored blob or sentinel.

Blob types (dispatched via serde ext code, not dict key inspection):

DELTA_SENTINEL / MISSING: start empty; caller replays writes.
_DeltaSnapshot(value): restore value directly from snapshot.
plain value (migration from old BinOp blobs): use directly.