langchain.callbacks.tracers.base.BaseTracer

class langchain.callbacks.tracers.base.BaseTracer(**kwargs: Any)

Bases: BaseCallbackHandler, ABC

Base interface for tracers.

Methods

__init__(**kwargs)
on_agent_action(action, *, run_id[, ...])	Run on agent action.
on_agent_finish(finish, *, run_id[, ...])	Run on agent end.
on_chain_end(outputs, *, run_id, **kwargs)	End a trace for a chain run.
on_chain_error(error, *, run_id, **kwargs)	Handle an error for a chain run.
on_chain_start(serialized, inputs, *, run_id)	Start a trace for a chain run.
on_chat_model_start(serialized, messages, *, ...)	Run when a chat model starts running.
on_llm_end(response, *, run_id, **kwargs)	End a trace for an LLM run.
on_llm_error(error, *, run_id, **kwargs)	Handle an error for an LLM run.
on_llm_new_token(token, *, run_id[, ...])	Run on new LLM token.
on_llm_start(serialized, prompts, *, run_id)	Start a trace for an LLM run.
on_retriever_end(documents, *, run_id, **kwargs)	Run when Retriever ends running.
on_retriever_error(error, *, run_id, **kwargs)	Run when Retriever errors.
on_retriever_start(serialized, query, *, run_id)	Run when Retriever starts running.
on_retry(retry_state, *, run_id, **kwargs)
on_text(text, *, run_id[, parent_run_id])	Run on arbitrary text.
on_tool_end(output, *, run_id, **kwargs)	End a trace for a tool run.
on_tool_error(error, *, run_id, **kwargs)	Handle an error for a tool run.
on_tool_start(serialized, input_str, *, run_id)	Start a trace for a tool run.

Attributes

ignore_agent	Whether to ignore agent callbacks.
ignore_chain	Whether to ignore chain callbacks.
ignore_chat_model	Whether to ignore chat model callbacks.
ignore_llm	Whether to ignore LLM callbacks.
ignore_retriever	Whether to ignore retriever callbacks.
ignore_retry	Whether to ignore retry callbacks.
raise_error
run_inline

on_agent_action(action: AgentAction, *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any

Run on agent action.

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

Run on agent end.

on_chain_end(outputs: Dict[str, Any], *, run_id: UUID, **kwargs: Any) → None

End a trace for a chain run.

on_chain_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, **kwargs: Any) → None

Handle an error for a chain run.

on_chain_start(serialized: Dict[str, Any], inputs: Dict[str, Any], *, run_id: UUID, tags: Optional[List[str]] = None, parent_run_id: Optional[UUID] = None, metadata: Optional[Dict[str, Any]] = None, run_type: Optional[str] = None, **kwargs: Any) → None

Start a trace for a chain run.

on_chat_model_start(serialized: Dict[str, Any], messages: List[List[BaseMessage]], *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs: Any) → Any

Run when a chat model starts running.

on_llm_end(response: LLMResult, *, run_id: UUID, **kwargs: Any) → None

End a trace for an LLM run.

on_llm_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, **kwargs: Any) → None

Handle an error for an LLM run.

on_llm_new_token(token: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → None

Run on new LLM token. Only available when streaming is enabled.

on_llm_start(serialized: Dict[str, Any], prompts: List[str], *, run_id: UUID, tags: Optional[List[str]] = None, parent_run_id: Optional[UUID] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs: Any) → None

Start a trace for an LLM run.

on_retriever_end(documents: Sequence[Document], *, run_id: UUID, **kwargs: Any) → None

Run when Retriever ends running.

on_retriever_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, **kwargs: Any) → None

Run when Retriever errors.

on_retriever_start(serialized: Dict[str, Any], query: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs: Any) → None

Run when Retriever starts running.

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

on_text(text: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any

Run on arbitrary text.

on_tool_end(output: str, *, run_id: UUID, **kwargs: Any) → None

End a trace for a tool run.

on_tool_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, **kwargs: Any) → None

Handle an error for a tool run.

on_tool_start(serialized: Dict[str, Any], input_str: str, *, run_id: UUID, tags: Optional[List[str]] = None, parent_run_id: Optional[UUID] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs: Any) → None

Start a trace for a tool run.

property ignore_agent: bool

Whether to ignore agent callbacks.

property ignore_chain: bool

Whether to ignore chain callbacks.

property ignore_chat_model: bool

Whether to ignore chat model callbacks.

property ignore_llm: bool

Whether to ignore LLM callbacks.

property ignore_retriever: bool

Whether to ignore retriever callbacks.

property ignore_retry: bool

Whether to ignore retry callbacks.

raise_error: bool = False

run_inline: bool = False