langchain_core.tracers.context.collect_runs¶

langchain_core.tracers.context.collect_runs() → Generator[RunCollectorCallbackHandler, None, None][source]¶

Collect all run traces in context.

Returns

The run collector callback handler.

Return type

run_collector.RunCollectorCallbackHandler

Example

>>> with collect_runs() as runs_cb:
        chain.invoke("foo")
        run_id = runs_cb.traced_runs[0].id