Get a callback manager for a chain group in a context manager.
Useful for grouping different calls together as a single run even if they aren't composed in a single chain.
trace_as_chain_group(
group_name: str,
callback_manager: CallbackManager | None = None,
*,
inputs: dict[str, Any] | None = None,
project_name: str | None = None,
example_id: str | UUID | None = None,
run_id: UUID | None = None,
tags: list[str] | None = None,
metadata: dict[str, Any] | None = None
) -> Generator[CallbackManagerForChainGroup, None, None]Must have LANGCHAIN_TRACING_V2 env var set to true to see the trace in
LangSmith.
Example:
llm_input = "Foo"
with trace_as_chain_group("group_name", inputs={"input": llm_input}) as manager:
# Use the callback manager for the chain group
res = llm.invoke(llm_input, {"callbacks": manager})
manager.on_chain_end({"output": res})| Name | Type | Description |
|---|---|---|
group_name* | str | The name of the chain group. |
callback_manager | CallbackManager | None | Default: NoneThe callback manager to use. |
inputs | dict[str, Any] | None | Default: NoneThe inputs to the chain group. |
project_name | str | None | Default: NoneThe name of the project. |
example_id | str | UUID | None | Default: NoneThe ID of the example. |
run_id | UUID | None | Default: NoneThe ID of the run. |
tags | list[str] | None | Default: NoneThe inheritable tags to apply to all runs. |
metadata | dict[str, Any] | None | Default: NoneThe metadata to apply to all runs. |