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LangGraph · Class

LastValue

LastValue is LangGraph’s default channel. It stores one value and replaces it whenever a new value is written.

Last updated

Syntax

LastValue(self, typ: Any, key: str = '')

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  • Pregel
  • Topic
  • BinaryOperatorAggregate
  • EphemeralValue
  • PregelNode

Source: LastValue | langgraph | LangChain Reference. Checked 2026-11-03.