ChainManagerMixin#

class langchain_core.callbacks.base.ChainManagerMixin[source]#

Mixin for chain callbacks.

Methods

on_agent_action(action, *, run_id[, ...])

Run on agent action.

on_agent_finish(finish, *, run_id[, ...])

Run on the agent end.

on_chain_end(outputs, *, run_id[, parent_run_id])

Run when chain ends running.

on_chain_error(error, *, run_id[, parent_run_id])

Run when chain errors.
on_agent_action(
action: AgentAction,
*,
run_id: UUID,
parent_run_id: UUID | None = None,
**kwargs: Any,
) → Any[source]#

Run on agent action.

Parameters:

  • action (AgentAction) – The agent action.

  • run_id (UUID) – The run ID. This is the ID of the current run.

  • parent_run_id (UUID) – The parent run ID. This is the ID of the parent run.

  • kwargs (Any) – Additional keyword arguments.

Return type:

Any

on_agent_finish(
finish: AgentFinish,
*,
run_id: UUID,
parent_run_id: UUID | None = None,
**kwargs: Any,
) → Any[source]#

Run on the agent end.

Parameters:

  • finish (AgentFinish) – The agent finish.

  • run_id (UUID) – The run ID. This is the ID of the current run.

  • parent_run_id (UUID) – The parent run ID. This is the ID of the parent run.

  • kwargs (Any) – Additional keyword arguments.

Return type:

Any

on_chain_end(
outputs: dict[str, Any],
*,
run_id: UUID,
parent_run_id: UUID | None = None,
**kwargs: Any,
) → Any[source]#

Run when chain ends running.

Parameters:

  • outputs (dict[str, Any]) – The outputs of the chain.

  • run_id (UUID) – The run ID. This is the ID of the current run.

  • parent_run_id (UUID) – The parent run ID. This is the ID of the parent run.

  • kwargs (Any) – Additional keyword arguments.

Return type:

Any

on_chain_error(
error: BaseException,
*,
run_id: UUID,
parent_run_id: UUID | None = None,
**kwargs: Any,
) → Any[source]#

Run when chain errors.

Parameters:

  • error (BaseException) – The error that occurred.

  • run_id (UUID) – The run ID. This is the ID of the current run.

  • parent_run_id (UUID) – The parent run ID. This is the ID of the parent run.

  • kwargs (Any) – Additional keyword arguments.

Return type:

Any