id stringlengths 14 15 | text stringlengths 49 2.47k | source stringlengths 61 166 |
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0e0de03d1e94-0 | langchain.callbacks.mlflow_callback.MlflowLogger¶
class langchain.callbacks.mlflow_callback.MlflowLogger(**kwargs: Any)[source]¶
Callback Handler that logs metrics and artifacts to mlflow server.
Parameters
name (str) – Name of the run.
experiment (str) – Name of the experiment.
tags (dict) – Tags to be attached for th... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.mlflow_callback.MlflowLogger.html |
0e0de03d1e94-1 | To log the input data as json file artifact.
langchain_artifact(chain: Any) → None[source]¶
metric(key: str, value: float) → None[source]¶
To log metric to mlflow server.
metrics(data: Union[Dict[str, float], Dict[str, int]], step: Optional[int] = 0) → None[source]¶
To log all metrics in the input dict.
start_run(name:... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.mlflow_callback.MlflowLogger.html |
431bd7dd3a8b-0 | langchain.callbacks.manager.CallbackManagerForToolRun¶
class langchain.callbacks.manager.CallbackManagerForToolRun(*, run_id: UUID, handlers: List[BaseCallbackHandler], inheritable_handlers: List[BaseCallbackHandler], parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, inheritable_tags: Optional[Lis... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForToolRun.html |
431bd7dd3a8b-1 | on_tool_error(error, **kwargs)
Run when tool errors.
__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]] = ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForToolRun.html |
431bd7dd3a8b-2 | text (str) – The received text.
Returns
The result of the callback.
Return type
Any
on_tool_end(output: str, **kwargs: Any) → None[source]¶
Run when tool ends running.
Parameters
output (str) – The output of the tool.
on_tool_error(error: Union[Exception, KeyboardInterrupt], **kwargs: Any) → None[source]¶
Run when tool... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForToolRun.html |
85f2a3fbed6e-0 | langchain.callbacks.tracers.run_collector.RunCollectorCallbackHandler¶
class langchain.callbacks.tracers.run_collector.RunCollectorCallbackHandler(example_id: Optional[Union[UUID, str]] = None, **kwargs: Any)[source]¶
A tracer that collects all nested runs in a list.
This tracer is useful for inspection and evaluation ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.run_collector.RunCollectorCallbackHandler.html |
85f2a3fbed6e-1 | 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.
... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.run_collector.RunCollectorCallbackHandler.html |
85f2a3fbed6e-2 | 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... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.run_collector.RunCollectorCallbackHandler.html |
85f2a3fbed6e-3 | 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, paren... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.run_collector.RunCollectorCallbackHandler.html |
85f2a3fbed6e-4 | 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. | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.run_collector.RunCollectorCallbackHandler.html |
019c7921a2ac-0 | langchain.callbacks.tracers.schemas.LLMRun¶
class langchain.callbacks.tracers.schemas.LLMRun[source]¶
Bases: BaseRun
Class for LLMRun.
Create a new model by parsing and validating input data from keyword arguments.
Raises ValidationError if the input data cannot be parsed to form a valid model.
param child_execution_or... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.LLMRun.html |
019c7921a2ac-1 | exclude – fields to exclude from new model, as with values this takes precedence over include
update – values to change/add in the new model. Note: the data is not validated before creating
the new model: you should trust this data
deep – set to True to make a deep copy of the model
Returns
new model instance
dict(*, i... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.LLMRun.html |
019c7921a2ac-2 | classmethod parse_obj(obj: Any) → Model¶
classmethod parse_raw(b: Union[str, bytes], *, content_type: unicode = None, encoding: unicode = 'utf8', proto: Protocol = None, allow_pickle: bool = False) → Model¶
classmethod schema(by_alias: bool = True, ref_template: unicode = '#/definitions/{model}') → DictStrAny¶
classmet... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.LLMRun.html |
810539e12af2-0 | langchain.callbacks.base.ToolManagerMixin¶
class langchain.callbacks.base.ToolManagerMixin[source]¶
Mixin for tool callbacks.
Methods
__init__()
on_tool_end(output, *, run_id[, parent_run_id])
Run when tool ends running.
on_tool_error(error, *, run_id[, parent_run_id])
Run when tool errors.
__init__()¶
on_tool_end(outp... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.ToolManagerMixin.html |
797e8a9dc7e7-0 | langchain.callbacks.streamlit.streamlit_callback_handler.LLMThoughtState¶
class langchain.callbacks.streamlit.streamlit_callback_handler.LLMThoughtState(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)[source]¶
Enumerator of the LLMThought state.
THINKING = 'THINKING'¶
RUNNING_TOOL =... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streamlit.streamlit_callback_handler.LLMThoughtState.html |
b5a5a7ae50d2-0 | langchain.callbacks.tracers.langchain_v1.LangChainTracerV1¶
class langchain.callbacks.tracers.langchain_v1.LangChainTracerV1(**kwargs: Any)[source]¶
An implementation of the SharedTracer that POSTS to the langchain endpoint.
Initialize the LangChain tracer.
Attributes
ignore_agent
Whether to ignore agent callbacks.
ign... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain_v1.LangChainTracerV1.html |
b5a5a7ae50d2-1 | 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 e... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain_v1.LangChainTracerV1.html |
b5a5a7ae50d2-2 | 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], *... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain_v1.LangChainTracerV1.html |
b5a5a7ae50d2-3 | 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_retriev... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain_v1.LangChainTracerV1.html |
b5a5a7ae50d2-4 | 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. | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain_v1.LangChainTracerV1.html |
8b9a5cd63624-0 | langchain.callbacks.flyte_callback.import_flytekit¶
langchain.callbacks.flyte_callback.import_flytekit() → Tuple[flytekit, renderer][source]¶
Import flytekit and flytekitplugins-deck-standard. | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.flyte_callback.import_flytekit.html |
7e36a5434fa5-0 | langchain.callbacks.tracers.evaluation.wait_for_all_evaluators¶
langchain.callbacks.tracers.evaluation.wait_for_all_evaluators() → None[source]¶
Wait for all tracers to finish. | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.evaluation.wait_for_all_evaluators.html |
0bae9eadfd48-0 | langchain.callbacks.tracers.langchain.LangChainTracer¶
class langchain.callbacks.tracers.langchain.LangChainTracer(example_id: Optional[Union[str, UUID]] = None, project_name: Optional[str] = None, client: Optional[Client] = None, tags: Optional[List[str]] = None, use_threading: bool = True, **kwargs: Any)[source]¶
An ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain.LangChainTracer.html |
0bae9eadfd48-1 | 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, ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain.LangChainTracer.html |
0bae9eadfd48-2 | 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], *... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain.LangChainTracer.html |
0bae9eadfd48-3 | 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_retriev... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain.LangChainTracer.html |
0bae9eadfd48-4 | 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.
wait_for_futures() → None[source]¶
Wait for t... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.langchain.LangChainTracer.html |
3ebd7094d273-0 | langchain.callbacks.manager.CallbackManagerForChainRun¶
class langchain.callbacks.manager.CallbackManagerForChainRun(*, run_id: UUID, handlers: List[BaseCallbackHandler], inheritable_handlers: List[BaseCallbackHandler], parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, inheritable_tags: Optional[L... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForChainRun.html |
3ebd7094d273-1 | on_retry(retry_state, **kwargs)
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, metadat... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForChainRun.html |
3ebd7094d273-2 | action (AgentAction) – The agent action.
Returns
The result of the callback.
Return type
Any
on_agent_finish(finish: AgentFinish, **kwargs: Any) → Any[source]¶
Run when agent finish is received.
Parameters
finish (AgentFinish) – The agent finish.
Returns
The result of the callback.
Return type
Any
on_chain_end(outputs:... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForChainRun.html |
87bc151a0952-0 | langchain.callbacks.openai_info.OpenAICallbackHandler¶
class langchain.callbacks.openai_info.OpenAICallbackHandler[source]¶
Callback Handler that tracks OpenAI info.
Attributes
always_verbose
Whether to call verbose callbacks even if verbose is False.
completion_tokens
ignore_agent
Whether to ignore agent callbacks.
ig... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.openai_info.OpenAICallbackHandler.html |
87bc151a0952-1 | Run when Retriever ends running.
on_retriever_error(error, *, run_id[, ...])
Run when Retriever errors.
on_retriever_start(serialized, query, *, run_id)
Run when Retriever starts running.
on_text(text, *, run_id[, parent_run_id])
Run on arbitrary text.
on_tool_end(output, *, run_id[, parent_run_id])
Run when tool ends ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.openai_info.OpenAICallbackHandler.html |
87bc151a0952-2 | Run when chain starts running.
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(res... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.openai_info.OpenAICallbackHandler.html |
87bc151a0952-3 | Run when Retriever starts running.
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, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any¶
Run when tool ends running.
on_tool_error(error: Union[Exception... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.openai_info.OpenAICallbackHandler.html |
62bf43854fab-0 | langchain.callbacks.aim_callback.import_aim¶
langchain.callbacks.aim_callback.import_aim() → Any[source]¶
Import the aim python package and raise an error if it is not installed. | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.import_aim.html |
4a6501a0b7b9-0 | langchain.callbacks.base.RunManagerMixin¶
class langchain.callbacks.base.RunManagerMixin[source]¶
Mixin for run manager.
Methods
__init__()
on_text(text, *, run_id[, parent_run_id])
Run on arbitrary text.
__init__()¶
on_text(text: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any[source]¶... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.RunManagerMixin.html |
06a7bfda7455-0 | langchain.callbacks.tracers.stdout.FunctionCallbackHandler¶
class langchain.callbacks.tracers.stdout.FunctionCallbackHandler(function: Callable[[str], None], **kwargs: Any)[source]¶
Tracer that calls a function with a single str parameter.
Attributes
ignore_agent
Whether to ignore agent callbacks.
ignore_chain
Whether ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.stdout.FunctionCallbackHandler.html |
06a7bfda7455-1 | 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... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.stdout.FunctionCallbackHandler.html |
06a7bfda7455-2 | 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... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.stdout.FunctionCallbackHandler.html |
06a7bfda7455-3 | 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:... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.stdout.FunctionCallbackHandler.html |
d11f3a0dcd00-0 | langchain.callbacks.promptlayer_callback.PromptLayerCallbackHandler¶
class langchain.callbacks.promptlayer_callback.PromptLayerCallbackHandler(pl_id_callback: Optional[Callable[[...], Any]] = None, pl_tags: Optional[List[str]] = [])[source]¶
Callback handler for promptlayer.
Initialize the PromptLayerCallbackHandler.
A... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.promptlayer_callback.PromptLayerCallbackHandler.html |
d11f3a0dcd00-1 | on_llm_start(serialized, prompts, *, run_id)
Run when LLM starts running.
on_retriever_end(documents, *, run_id[, ...])
Run when Retriever ends running.
on_retriever_error(error, *, run_id[, ...])
Run when Retriever errors.
on_retriever_start(serialized, query, *, run_id)
Run when Retriever starts running.
on_text(text... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.promptlayer_callback.PromptLayerCallbackHandler.html |
d11f3a0dcd00-2 | Run when chain errors.
on_chain_start(serialized: Dict[str, Any], inputs: Dict[str, Any], *, 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 chain starts running.
on_chat_model_start(serialized: Dict[str, Any... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.promptlayer_callback.PromptLayerCallbackHandler.html |
d11f3a0dcd00-3 | Run when Retriever ends running.
on_retriever_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any¶
Run when Retriever errors.
on_retriever_start(serialized: Dict[str, Any], query: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.promptlayer_callback.PromptLayerCallbackHandler.html |
b7889f92298c-0 | langchain.callbacks.mlflow_callback.MlflowCallbackHandler¶
class langchain.callbacks.mlflow_callback.MlflowCallbackHandler(name: Optional[str] = 'langchainrun-%', experiment: Optional[str] = 'langchain', tags: Optional[Dict] = {}, tracking_uri: Optional[str] = None)[source]¶
Callback Handler that logs metrics and artif... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.mlflow_callback.MlflowCallbackHandler.html |
b7889f92298c-1 | on_chain_error(error, **kwargs)
Run when chain errors.
on_chain_start(serialized, inputs, **kwargs)
Run when chain starts running.
on_chat_model_start(serialized, messages, *, ...)
Run when a chat model starts running.
on_llm_end(response, **kwargs)
Run when LLM ends running.
on_llm_error(error, **kwargs)
Run when LLM ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.mlflow_callback.MlflowCallbackHandler.html |
b7889f92298c-2 | get_custom_callback_meta() → Dict[str, Any]¶
on_agent_action(action: AgentAction, **kwargs: Any) → Any[source]¶
Run on agent action.
on_agent_finish(finish: AgentFinish, **kwargs: Any) → None[source]¶
Run when agent ends running.
on_chain_end(outputs: Dict[str, Any], **kwargs: Any) → None[source]¶
Run when chain ends r... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.mlflow_callback.MlflowCallbackHandler.html |
b7889f92298c-3 | Run when Retriever ends running.
on_retriever_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any¶
Run when Retriever errors.
on_retriever_start(serialized: Dict[str, Any], query: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.mlflow_callback.MlflowCallbackHandler.html |
3d04616c6244-0 | langchain.callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler¶
class langchain.callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler(*, answer_prefix_tokens: Optional[List[str]] = None, strip_tokens: bool = True, stream_prefix: bool = False)[source]¶
Callback handler that returns an ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler.html |
3d04616c6244-1 | Run when chain starts running.
on_chat_model_start(serialized, messages, *, ...)
Run when a chat model starts running.
on_llm_end(response, **kwargs)
Run when LLM ends running.
on_llm_error(error, **kwargs)
Run when LLM errors.
on_llm_new_token(token, **kwargs)
Run on new LLM token.
on_llm_start(serialized, prompts, **... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler.html |
3d04616c6244-2 | reached)
stream_prefix – Should answer prefix itself also be streamed?
async aiter() → AsyncIterator[str]¶
append_to_last_tokens(token: str) → None[source]¶
check_if_answer_reached() → bool[source]¶
async on_agent_action(action: AgentAction, *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler.html |
3d04616c6244-3 | Run when chain starts running.
async 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.
async on... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler.html |
3d04616c6244-4 | Run on retriever start.
async on_text(text: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, **kwargs: Any) → None¶
Run on arbitrary text.
async on_tool_end(output: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, **kwargs: Any) →... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streaming_aiter_final_only.AsyncFinalIteratorCallbackHandler.html |
e3b4c2f0774a-0 | langchain.callbacks.utils.BaseMetadataCallbackHandler¶
class langchain.callbacks.utils.BaseMetadataCallbackHandler[source]¶
This class handles the metadata and associated function states for callbacks.
step¶
The current step.
Type
int
starts¶
The number of times the start method has been called.
Type
int
ends¶
The numb... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.utils.BaseMetadataCallbackHandler.html |
e3b4c2f0774a-1 | Type
int
on_llm_start_records¶
A list of records of the on_llm_start method.
Type
list
on_llm_token_records¶
A list of records of the on_llm_token method.
Type
list
on_llm_end_records¶
A list of records of the on_llm_end method.
Type
list
on_chain_start_records¶
A list of records of the on_chain_start method.
Type
list... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.utils.BaseMetadataCallbackHandler.html |
87a46a8af752-0 | langchain.callbacks.manager.CallbackManagerForLLMRun¶
class langchain.callbacks.manager.CallbackManagerForLLMRun(*, 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[... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForLLMRun.html |
87a46a8af752-1 | 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]] = No... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForLLMRun.html |
87a46a8af752-2 | Run when LLM generates a new token.
Parameters
token (str) – The new token.
on_retry(retry_state: RetryCallState, **kwargs: Any) → None¶
on_text(text: str, **kwargs: Any) → Any¶
Run when text is received.
Parameters
text (str) – The received text.
Returns
The result of the callback.
Return type
Any
Examples using Callb... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.CallbackManagerForLLMRun.html |
6063bdb96d2a-0 | langchain.callbacks.tracers.schemas.TracerSessionV1Base¶
class langchain.callbacks.tracers.schemas.TracerSessionV1Base[source]¶
Bases: BaseModel
Base class for TracerSessionV1.
Create a new model by parsing and validating input data from keyword arguments.
Raises ValidationError if the input data cannot be parsed to fo... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.TracerSessionV1Base.html |
6063bdb96d2a-1 | deep – set to True to make a deep copy of the model
Returns
new model instance
dict(*, include: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, exclude: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, by_alias: bool = False, skip_defaults: Optional[bool] = None, exclude_unset: bool = False, ex... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.TracerSessionV1Base.html |
6063bdb96d2a-2 | classmethod schema(by_alias: bool = True, ref_template: unicode = '#/definitions/{model}') → DictStrAny¶
classmethod schema_json(*, by_alias: bool = True, ref_template: unicode = '#/definitions/{model}', **dumps_kwargs: Any) → unicode¶
classmethod update_forward_refs(**localns: Any) → None¶
Try to update ForwardRefs on... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.TracerSessionV1Base.html |
036663eeb2a6-0 | langchain.callbacks.manager.wandb_tracing_enabled¶
langchain.callbacks.manager.wandb_tracing_enabled(session_name: str = 'default') → Generator[None, None, None][source]¶
Get the WandbTracer in a context manager.
Parameters
session_name (str, optional) – The name of the session.
Defaults to “default”.
Returns
None
Exam... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.wandb_tracing_enabled.html |
3e26e71e3945-0 | langchain.callbacks.manager.trace_as_chain_group¶
langchain.callbacks.manager.trace_as_chain_group(group_name: str, callback_manager: Optional[CallbackManager] = None, *, project_name: Optional[str] = None, example_id: Optional[Union[str, UUID]] = None, tags: Optional[List[str]] = None) → Generator[CallbackManager, Non... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.trace_as_chain_group.html |
003e5765d9c6-0 | langchain.callbacks.manager.env_var_is_set¶
langchain.callbacks.manager.env_var_is_set(env_var: str) → bool[source]¶
Check if an environment variable is set.
Parameters
env_var (str) – The name of the environment variable.
Returns
True if the environment variable is set, False otherwise.
Return type
bool | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.env_var_is_set.html |
d07c66b84735-0 | langchain.callbacks.streamlit.mutable_expander.ChildType¶
class langchain.callbacks.streamlit.mutable_expander.ChildType(value, names=None, *, module=None, qualname=None, type=None, start=1, boundary=None)[source]¶
The enumerator of the child type.
MARKDOWN = 'MARKDOWN'¶
EXCEPTION = 'EXCEPTION'¶ | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streamlit.mutable_expander.ChildType.html |
917e03900aa7-0 | langchain.callbacks.aim_callback.AimCallbackHandler¶
class langchain.callbacks.aim_callback.AimCallbackHandler(repo: Optional[str] = None, experiment_name: Optional[str] = None, system_tracking_interval: Optional[int] = 10, log_system_params: bool = True)[source]¶
Callback Handler that logs to Aim.
Parameters
repo (str... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.AimCallbackHandler.html |
917e03900aa7-1 | get_custom_callback_meta()
on_agent_action(action, **kwargs)
Run on agent action.
on_agent_finish(finish, **kwargs)
Run when agent ends running.
on_chain_end(outputs, **kwargs)
Run when chain ends running.
on_chain_error(error, **kwargs)
Run when chain errors.
on_chain_start(serialized, inputs, **kwargs)
Run when chain... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.AimCallbackHandler.html |
917e03900aa7-2 | reset_callback_meta()
Reset the callback metadata.
setup(**kwargs)
__init__(repo: Optional[str] = None, experiment_name: Optional[str] = None, system_tracking_interval: Optional[int] = 10, log_system_params: bool = True) → None[source]¶
Initialize callback handler.
flush_tracker(repo: Optional[str] = None, experiment_n... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.AimCallbackHandler.html |
917e03900aa7-3 | Run when chain ends running.
on_chain_error(error: Union[Exception, KeyboardInterrupt], **kwargs: Any) → None[source]¶
Run when chain errors.
on_chain_start(serialized: Dict[str, Any], inputs: Dict[str, Any], **kwargs: Any) → None[source]¶
Run when chain starts running.
on_chat_model_start(serialized: Dict[str, Any], m... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.AimCallbackHandler.html |
917e03900aa7-4 | 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) → Any¶
Run when Retriever starts running.
on_text(text: str, **kwargs: Any) → None[sour... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.AimCallbackHandler.html |
a7343e52c006-0 | langchain.callbacks.aim_callback.BaseMetadataCallbackHandler¶
class langchain.callbacks.aim_callback.BaseMetadataCallbackHandler[source]¶
This class handles the metadata and associated function states for callbacks.
step¶
The current step.
Type
int
starts¶
The number of times the start method has been called.
Type
int
... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.BaseMetadataCallbackHandler.html |
a7343e52c006-1 | Type
int
Attributes
always_verbose
Whether to call verbose callbacks even if verbose is False.
ignore_agent
Whether to ignore agent callbacks.
ignore_chain
Whether to ignore chain callbacks.
ignore_llm
Whether to ignore LLM callbacks.
ignore_retriever
Whether to ignore retriever callbacks.
Methods
__init__()
get_custom... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.aim_callback.BaseMetadataCallbackHandler.html |
cbc08d97767c-0 | langchain.callbacks.human.HumanApprovalCallbackHandler¶
class langchain.callbacks.human.HumanApprovalCallbackHandler(approve: ~typing.Callable[[~typing.Any], bool] = <function _default_approve>, should_check: ~typing.Callable[[~typing.Dict[str, ~typing.Any]], bool] = <function _default_true>)[source]¶
Callback for manu... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.human.HumanApprovalCallbackHandler.html |
cbc08d97767c-1 | Run on new LLM token.
on_llm_start(serialized, prompts, *, run_id)
Run when LLM starts running.
on_retriever_end(documents, *, run_id[, ...])
Run when Retriever ends running.
on_retriever_error(error, *, run_id[, ...])
Run when Retriever errors.
on_retriever_start(serialized, query, *, run_id)
Run when Retriever starts... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.human.HumanApprovalCallbackHandler.html |
cbc08d97767c-2 | Run when chain ends running.
on_chain_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any¶
Run when chain errors.
on_chain_start(serialized: Dict[str, Any], inputs: Dict[str, Any], *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Opti... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.human.HumanApprovalCallbackHandler.html |
cbc08d97767c-3 | Run on new LLM token. Only available when streaming is enabled.
on_llm_start(serialized: Dict[str, Any], prompts: List[str], *, 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 LLM starts running.
on_retriever... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.human.HumanApprovalCallbackHandler.html |
cbc08d97767c-4 | Run when tool errors.
on_tool_start(serialized: Dict[str, Any], input_str: str, *, run_id: UUID, parent_run_id: Optional[UUID] = None, **kwargs: Any) → Any[source]¶
Run when tool starts running.
Examples using HumanApprovalCallbackHandler¶
Human-in-the-loop Tool Validation | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.human.HumanApprovalCallbackHandler.html |
3f4d2036308e-0 | langchain.callbacks.streamlit.mutable_expander.ChildRecord¶
class langchain.callbacks.streamlit.mutable_expander.ChildRecord(type: ChildType, kwargs: Dict[str, Any], dg: DeltaGenerator)[source]¶
The child record as a NamedTuple.
Create new instance of ChildRecord(type, kwargs, dg)
Attributes
dg
Alias for field number 2... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streamlit.mutable_expander.ChildRecord.html |
9506188a31e9-0 | langchain.callbacks.manager.tracing_v2_enabled¶
langchain.callbacks.manager.tracing_v2_enabled(project_name: Optional[str] = None, *, example_id: Optional[Union[str, UUID]] = None, tags: Optional[List[str]] = None, client: Optional[LangSmithClient] = None) → Generator[None, None, None][source]¶
Instruct LangChain to lo... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.tracing_v2_enabled.html |
7aeea0c0336f-0 | langchain.callbacks.tracers.schemas.Run¶
class langchain.callbacks.tracers.schemas.Run[source]¶
Bases: RunBase
Run schema for the V2 API in the Tracer.
Create a new model by parsing and validating input data from keyword arguments.
Raises ValidationError if the input data cannot be parsed to form a valid model.
param c... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.Run.html |
7aeea0c0336f-1 | Default values are respected, but no other validation is performed.
Behaves as if Config.extra = ‘allow’ was set since it adds all passed values
copy(*, include: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, exclude: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, update: Optional[DictStrAny... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.Run.html |
7aeea0c0336f-2 | classmethod from_orm(obj: Any) → Model¶
json(*, include: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, exclude: Optional[Union[AbstractSetIntStr, MappingIntStrAny]] = None, by_alias: bool = False, skip_defaults: Optional[bool] = None, exclude_unset: bool = False, exclude_defaults: bool = False, exclude_n... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.schemas.Run.html |
ffd82529891e-0 | langchain.callbacks.wandb_callback.construct_html_from_prompt_and_generation¶
langchain.callbacks.wandb_callback.construct_html_from_prompt_and_generation(prompt: str, generation: str) → Any[source]¶
Construct an html element from a prompt and a generation.
Parameters
prompt (str) – The prompt.
generation (str) – The g... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.wandb_callback.construct_html_from_prompt_and_generation.html |
f8482485c9af-0 | langchain.callbacks.base.ChainManagerMixin¶
class langchain.callbacks.base.ChainManagerMixin[source]¶
Mixin for chain callbacks.
Methods
__init__()
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[, parent_run_id])... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.ChainManagerMixin.html |
030bf0e3956a-0 | langchain.callbacks.utils.load_json¶
langchain.callbacks.utils.load_json(json_path: Union[str, Path]) → str[source]¶
Load json file to a string.
Parameters
json_path (str) – The path to the json file.
Returns
The string representation of the json file.
Return type
(str) | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.utils.load_json.html |
43958d94c507-0 | langchain.callbacks.streamlit.streamlit_callback_handler.ToolRecord¶
class langchain.callbacks.streamlit.streamlit_callback_handler.ToolRecord(name: str, input_str: str)[source]¶
The tool record as a NamedTuple.
Create new instance of ToolRecord(name, input_str)
Attributes
input_str
Alias for field number 1
name
Alias ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.streamlit.streamlit_callback_handler.ToolRecord.html |
e117a4bf5b75-0 | langchain.callbacks.manager.AsyncCallbackManagerForChainRun¶
class langchain.callbacks.manager.AsyncCallbackManagerForChainRun(*, run_id: UUID, handlers: List[BaseCallbackHandler], inheritable_handlers: List[BaseCallbackHandler], parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, inheritable_tags: ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.AsyncCallbackManagerForChainRun.html |
e117a4bf5b75-1 | Run when chain errors.
on_retry(retry_state, **kwargs)
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[Lis... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.AsyncCallbackManagerForChainRun.html |
e117a4bf5b75-2 | Parameters
action (AgentAction) – The agent action.
Returns
The result of the callback.
Return type
Any
async on_agent_finish(finish: AgentFinish, **kwargs: Any) → Any[source]¶
Run when agent finish is received.
Parameters
finish (AgentFinish) – The agent finish.
Returns
The result of the callback.
Return type
Any
asyn... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.AsyncCallbackManagerForChainRun.html |
809d742322c5-0 | langchain.callbacks.manager.tracing_enabled¶
langchain.callbacks.manager.tracing_enabled(session_name: str = 'default') → Generator[TracerSessionV1, None, None][source]¶
Get the Deprecated LangChainTracer in a context manager.
Parameters
session_name (str, optional) – The name of the session.
Defaults to “default”.
Ret... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.manager.tracing_enabled.html |
3f597fed3ed2-0 | langchain.callbacks.utils.import_pandas¶
langchain.callbacks.utils.import_pandas() → Any[source]¶
Import the pandas python package and raise an error if it is not installed. | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.utils.import_pandas.html |
8c1441fc1c26-0 | langchain.callbacks.utils.flatten_dict¶
langchain.callbacks.utils.flatten_dict(nested_dict: Dict[str, Any], parent_key: str = '', sep: str = '_') → Dict[str, Any][source]¶
Flattens a nested dictionary into a flat dictionary.
Parameters
nested_dict (dict) – The nested dictionary to flatten.
parent_key (str) – The prefix... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.utils.flatten_dict.html |
80c45ed92df2-0 | langchain.callbacks.base.AsyncCallbackHandler¶
class langchain.callbacks.base.AsyncCallbackHandler[source]¶
Async callback handler that can be used to handle callbacks from langchain.
Attributes
ignore_agent
Whether to ignore agent callbacks.
ignore_chain
Whether to ignore chain callbacks.
ignore_chat_model
Whether to ... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.AsyncCallbackHandler.html |
80c45ed92df2-1 | Run on retriever error.
on_retriever_start(serialized, query, *, run_id)
Run on retriever start.
on_text(text, *, run_id[, parent_run_id, tags])
Run on arbitrary text.
on_tool_end(output, *, run_id[, ...])
Run when tool ends running.
on_tool_error(error, *, run_id[, ...])
Run when tool errors.
on_tool_start(serialized,... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.AsyncCallbackHandler.html |
80c45ed92df2-2 | Run when chain errors.
async on_chain_start(serialized: Dict[str, Any], inputs: Dict[str, Any], *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs: Any) → None[source]¶
Run when chain starts running.
async on_chat_model_start(seri... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.AsyncCallbackHandler.html |
80c45ed92df2-3 | Run on new LLM token. Only available when streaming is enabled.
async on_llm_start(serialized: Dict[str, Any], prompts: List[str], *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, metadata: Optional[Dict[str, Any]] = None, **kwargs: Any) → None[source]¶
Run when LLM starts runnin... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.AsyncCallbackHandler.html |
80c45ed92df2-4 | Run when tool ends running.
async on_tool_error(error: Union[Exception, KeyboardInterrupt], *, run_id: UUID, parent_run_id: Optional[UUID] = None, tags: Optional[List[str]] = None, **kwargs: Any) → None[source]¶
Run when tool errors.
async on_tool_start(serialized: Dict[str, Any], input_str: str, *, run_id: UUID, paren... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.base.AsyncCallbackHandler.html |
2450641e731b-0 | langchain.callbacks.tracers.base.BaseTracer¶
class langchain.callbacks.tracers.base.BaseTracer(**kwargs: Any)[source]¶
Base interface for tracers.
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_l... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.base.BaseTracer.html |
2450641e731b-1 | 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, *... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.base.BaseTracer.html |
2450641e731b-2 | 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[source]¶
Start a trace for a chain... | https://api.python.langchain.com/en/latest/callbacks/langchain.callbacks.tracers.base.BaseTracer.html |
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