langchain_core.callbacks.manager.CallbackManagerForRetrieverRun¶

class langchain_core.callbacks.manager.CallbackManagerForRetrieverRun(*, run_id: UUID, handlers: List[BaseCallbackHandler], inheritable_handlers: List[BaseCallbackHandler], parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, inheritable_tags: Optional[List[str]] = None, metadata: Optional[Dict[str, Any]] = None, inheritable_metadata: Optional[Dict[str, Any]] = None)[source]¶

Callback manager for retriever run.

Initialize the run manager.

Parameters

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

  • handlers (List[BaseCallbackHandler]) – The list of handlers.

  • inheritable_handlers (List[BaseCallbackHandler]) – The list of inheritable handlers.

  • parent_run_id (UUID, optional) – The ID of the parent run. Defaults to None.

  • tags (Optional[List[str]]) – The list of tags.

  • inheritable_tags (Optional[List[str]]) – The list of inheritable tags.

  • metadata (Optional[Dict[str, Any]]) – The metadata.

  • inheritable_metadata (Optional[Dict[str, Any]]) – The inheritable metadata.

Methods

__init__(*, run_id, handlers, ...[, ...])

Initialize the run manager.

get_child([tag])

Get a child callback manager.

get_noop_manager()

Return a manager that doesn't perform any operations.

on_retriever_end(documents, **kwargs)

Run when retriever ends running.

on_retriever_error(error, **kwargs)

Run when retriever errors.

on_retry(retry_state, **kwargs)

Run on a retry event.

on_text(text, **kwargs)

Run when text is received.
__init__(*, run_id: UUID, handlers: List[BaseCallbackHandler], inheritable_handlers: List[BaseCallbackHandler], parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, inheritable_tags: Optional[List[str]] = None, metadata: Optional[Dict[str, Any]] = None, inheritable_metadata: Optional[Dict[str, Any]] = None) → None¶

Initialize the run manager.

Parameters

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

  • handlers (List[BaseCallbackHandler]) – The list of handlers.

  • inheritable_handlers (List[BaseCallbackHandler]) – The list of inheritable handlers.

  • parent_run_id (UUID, optional) – The ID of the parent run. Defaults to None.

  • tags (Optional[List[str]]) – The list of tags.

  • inheritable_tags (Optional[List[str]]) – The list of inheritable tags.

  • metadata (Optional[Dict[str, Any]]) – The metadata.

  • inheritable_metadata (Optional[Dict[str, Any]]) – The inheritable metadata.

Return type

None

get_child(tag: Optional[str] = None) → CallbackManager¶

Get a child callback manager.

Parameters

tag (str, optional) – The tag for the child callback manager. Defaults to None.

Returns

The child callback manager.

Return type

CallbackManager

classmethod get_noop_manager() → BRM¶

Return a manager that doesn’t perform any operations.

Returns

The noop manager.

Return type

BaseRunManager

on_retriever_end(documents: Sequence[Document], **kwargs: Any) → None[source]¶

Run when retriever ends running.

Parameters

  • documents (Sequence[Document]) –

  • kwargs (Any) –

Return type

None

on_retriever_error(error: BaseException, **kwargs: Any) → None[source]¶

Run when retriever errors.

Parameters

  • error (BaseException) –

  • kwargs (Any) –

Return type

None

on_retry(retry_state: RetryCallState, **kwargs: Any) → None¶

Run on a retry event.

Parameters

  • retry_state (RetryCallState) –

  • kwargs (Any) –

Return type

None

on_text(text: str, **kwargs: Any) → Any¶

Run when text is received.

Parameters

  • text (str) – The received text.

  • kwargs (Any) –

Returns

The result of the callback.

Return type

Any

Examples using CallbackManagerForRetrieverRun¶