aget_messages() — langchain Function Reference

Architecture documentation for the aget_messages() function in chat_history.py from the langchain codebase.

Function python LangChainCore LanguageModelBase calls 1 called by 1

Entity Profile

LangChainCore→ LanguageModelBase→ aget_messages() — langchain Function Reference

Dependency Diagram

graph TD
  e7a0eac9_f912_7245_b1d4_a8565da93bed["aget_messages()"]
  bafcb99b_bf29_77cc_2ba1_06c40c54e908["BaseChatMessageHistory"]
  e7a0eac9_f912_7245_b1d4_a8565da93bed -->|defined in| bafcb99b_bf29_77cc_2ba1_06c40c54e908
  e376169e_88f7_e872_3e59_e528f2adfd91["aget_messages()"]
  e376169e_88f7_e872_3e59_e528f2adfd91 -->|calls| e7a0eac9_f912_7245_b1d4_a8565da93bed
  e376169e_88f7_e872_3e59_e528f2adfd91["aget_messages()"]
  e7a0eac9_f912_7245_b1d4_a8565da93bed -->|calls| e376169e_88f7_e872_3e59_e528f2adfd91
  style e7a0eac9_f912_7245_b1d4_a8565da93bed fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/chat_history.py lines 99–110

    async def aget_messages(self) -> list[BaseMessage]:
        """Async version of getting messages.

        Can over-ride this method to provide an efficient async implementation.

        In general, fetching messages may involve IO to the underlying persistence
        layer.

        Returns:
            The messages.
        """
        return await run_in_executor(None, lambda: self.messages)