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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

PythonlanggraphtypingContextT_contra

Attribute●Since v0.6

ContextT_contra

Copy

ContextT_contra = TypeVar(
  'ContextT_contra',
  bound=(StateLike | None),
  contravariant=True,
  default=None
)

View source on GitHub