LangChain Reference home pageLangChain ReferenceLangChain Reference
  • GitHub
  • Main Docs
Deep Agents
LangChain
LangGraph
Integrations
LangSmith
  • Overview
    • Overview
    • Graphs
    • Functional API
    • Pregel
    • Checkpointing
    • Storage
    • Caching
    • Types
    • Runtime
    • Config
    • Errors
    • Constants
    • Channels
    • Agents
    LangGraph CLI
    LangGraph SDK
    LangGraph Supervisor
    LangGraph Swarm
    ⌘I

    LangChain Assistant

    Ask a question to get started

    Enter to send•Shift+Enter new line

    Menu

    OverviewGraphsFunctional APIPregelCheckpointingStorageCachingTypesRuntimeConfigErrorsConstantsChannelsAgents
    LangGraph CLI
    LangGraph SDK
    LangGraph Supervisor
    LangGraph Swarm
    Language
    Theme
    Pythonlanggraphpregel_iomap_output_updates
    Function●Since v0.6

    map_output_updates

    Map pending writes (a sequence of tuples (channel, value)) to output chunk.

    Copy
    map_output_updates(
      output_channels: str | Sequence[str],
      tasks: list[tuple[PregelExecutableTask, Sequence[tuple[str, Any]]]],
      cached: bool = False
    ) -> Iterator[dict[str, Any | dict[str, Any]]]
    View source on GitHub