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ChainManagerMixin Class — langchain Architecture

Architecture documentation for the ChainManagerMixin class in base.py from the langchain codebase.

Class python

Entity Profile

Dependency Diagram

graph TD
  b793455e_fb4f_5778_19b0_9da3f3207dd5["ChainManagerMixin"]
  aa78d849_32e0_cbe3_8323_1a62fafa0824["base.py"]
  b793455e_fb4f_5778_19b0_9da3f3207dd5 -->|defined in| aa78d849_32e0_cbe3_8323_1a62fafa0824
  490c83e0_eb74_d706_8687_e5f0bcb033ec["on_chain_end()"]
  b793455e_fb4f_5778_19b0_9da3f3207dd5 -->|method| 490c83e0_eb74_d706_8687_e5f0bcb033ec
  db91ee21_e503_3b24_b5fe_9b8d7b4d4aba["on_chain_error()"]
  b793455e_fb4f_5778_19b0_9da3f3207dd5 -->|method| db91ee21_e503_3b24_b5fe_9b8d7b4d4aba
  7b289967_2708_52d9_0d55_c0d6d855e5d8["on_agent_action()"]
  b793455e_fb4f_5778_19b0_9da3f3207dd5 -->|method| 7b289967_2708_52d9_0d55_c0d6d855e5d8
  686bb78f_d123_88e6_d224_7f5109b15efd["on_agent_finish()"]
  b793455e_fb4f_5778_19b0_9da3f3207dd5 -->|method| 686bb78f_d123_88e6_d224_7f5109b15efd

Relationship Graph

Source Code

libs/core/langchain_core/callbacks/base.py lines 128–197

class ChainManagerMixin:
    """Mixin for chain callbacks."""

    def on_chain_end(
        self,
        outputs: dict[str, Any],
        *,
        run_id: UUID,
        parent_run_id: UUID | None = None,
        **kwargs: Any,
    ) -> Any:
        """Run when chain ends running.

        Args:
            outputs: The outputs of the chain.
            run_id: The ID of the current run.
            parent_run_id: The ID of the parent run.
            **kwargs: Additional keyword arguments.
        """

    def on_chain_error(
        self,
        error: BaseException,
        *,
        run_id: UUID,
        parent_run_id: UUID | None = None,
        **kwargs: Any,
    ) -> Any:
        """Run when chain errors.

        Args:
            error: The error that occurred.
            run_id: The ID of the current run.
            parent_run_id: The ID of the parent run.
            **kwargs: Additional keyword arguments.
        """

    def on_agent_action(
        self,
        action: AgentAction,
        *,
        run_id: UUID,
        parent_run_id: UUID | None = None,
        **kwargs: Any,
    ) -> Any:
        """Run on agent action.

        Args:
            action: The agent action.
            run_id: The ID of the current run.
            parent_run_id: The ID of the parent run.
            **kwargs: Additional keyword arguments.
        """

    def on_agent_finish(
        self,
        finish: AgentFinish,
        *,
        run_id: UUID,
        parent_run_id: UUID | None = None,
        **kwargs: Any,
    ) -> Any:
        """Run on the agent end.

        Args:
            finish: The agent finish.
            run_id: The ID of the current run.
            parent_run_id: The ID of the parent run.
            **kwargs: Additional keyword arguments.
        """

Defined In

Source

Frequently Asked Questions

What is the ChainManagerMixin class?
ChainManagerMixin is a class in the langchain codebase, defined in libs/core/langchain_core/callbacks/base.py.
Where is ChainManagerMixin defined?
ChainManagerMixin is defined in libs/core/langchain_core/callbacks/base.py at line 128.

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