CallbackManagerMixin#
- class langchain_core.callbacks.base.CallbackManagerMixin[source]#
Mixin for callback manager.
Methods
__init__
()on_chain_start
(serialized, inputs, *, run_id)Run when a chain starts running.
on_chat_model_start
(serialized, messages, *, ...)Run when a chat model starts running.
on_llm_start
(serialized, prompts, *, run_id)Run when LLM starts running.
on_retriever_start
(serialized, query, *, run_id)Run when the Retriever starts running.
on_tool_start
(serialized, input_str, *, run_id)Run when the tool starts running.
- __init__()#
- on_chain_start(serialized: Dict[str, Any], inputs: Dict[str, Any], *, run_id: UUID, parent_run_id: UUID | None = None, tags: List[str] | None = None, metadata: Dict[str, Any] | None = None, **kwargs: Any) Any [source]#
Run when a chain starts running.
- Parameters:
serialized (Dict[str, Any]) – The serialized chain.
inputs (Dict[str, Any]) – The inputs.
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.
tags (Optional[List[str]]) – The tags.
metadata (Optional[Dict[str, Any]]) – The metadata.
kwargs (Any) – Additional keyword arguments.
- Return type:
Any
- on_chat_model_start(serialized: Dict[str, Any], messages: List[List[BaseMessage]], *, run_id: UUID, parent_run_id: UUID | None = None, tags: List[str] | None = None, metadata: Dict[str, Any] | None = None, **kwargs: Any) Any [source]#
Run when a chat model starts running.
- ATTENTION: This method is called for chat models. If you’re implementing
a handler for a non-chat model, you should use on_llm_start instead.
- Parameters:
serialized (Dict[str, Any]) – The serialized chat model.
messages (List[List[BaseMessage]]) – The messages.
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.
tags (Optional[List[str]]) – The tags.
metadata (Optional[Dict[str, Any]]) – The metadata.
kwargs (Any) – Additional keyword arguments.
- Return type:
Any
- on_llm_start(serialized: Dict[str, Any], prompts: List[str], *, run_id: UUID, parent_run_id: UUID | None = None, tags: List[str] | None = None, metadata: Dict[str, Any] | None = None, **kwargs: Any) Any [source]#
Run when LLM starts running.
- ATTENTION: This method is called for non-chat models (regular LLMs). If
you’re implementing a handler for a chat model, you should use on_chat_model_start instead.
- Parameters:
serialized (Dict[str, Any]) – The serialized LLM.
prompts (List[str]) – The prompts.
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.
tags (Optional[List[str]]) – The tags.
metadata (Optional[Dict[str, Any]]) – The metadata.
kwargs (Any) – Additional keyword arguments.
- Return type:
Any
- on_retriever_start(serialized: Dict[str, Any], query: str, *, run_id: UUID, parent_run_id: UUID | None = None, tags: List[str] | None = None, metadata: Dict[str, Any] | None = None, **kwargs: Any) Any [source]#
Run when the Retriever starts running.
- Parameters:
serialized (Dict[str, Any]) – The serialized Retriever.
query (str) – The query.
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.
tags (Optional[List[str]]) – The tags.
metadata (Optional[Dict[str, Any]]) – The metadata.
kwargs (Any) – Additional keyword arguments.
- Return type:
Any
- on_tool_start(serialized: Dict[str, Any], input_str: str, *, run_id: UUID, parent_run_id: UUID | None = None, tags: List[str] | None = None, metadata: Dict[str, Any] | None = None, inputs: Dict[str, Any] | None = None, **kwargs: Any) Any [source]#
Run when the tool starts running.
- Parameters:
serialized (Dict[str, Any]) – The serialized tool.
input_str (str) – The input string.
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.
tags (Optional[List[str]]) – The tags.
metadata (Optional[Dict[str, Any]]) – The metadata.
inputs (Optional[Dict[str, Any]]) – The inputs.
kwargs (Any) – Additional keyword arguments.
- Return type:
Any