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_get_tool_run_info_with_inputs() — langchain Function Reference

Architecture documentation for the _get_tool_run_info_with_inputs() function in event_stream.py from the langchain codebase.

Function python Observability Tracers called by 2

Entity Profile

Dependency Diagram

graph TD
  f3f30716_b889_9f3d_db23_c53fb64b7cf1["_get_tool_run_info_with_inputs()"]
  33d093c4_1ed0_fc6a_17c6_762d4c5cfa04["_AstreamEventsCallbackHandler"]
  f3f30716_b889_9f3d_db23_c53fb64b7cf1 -->|defined in| 33d093c4_1ed0_fc6a_17c6_762d4c5cfa04
  cbfb1494_a541_4083_b9d5_c5f737190b70["on_tool_error()"]
  cbfb1494_a541_4083_b9d5_c5f737190b70 -->|calls| f3f30716_b889_9f3d_db23_c53fb64b7cf1
  3431946e_3bda_d7f5_8ceb_4e455bf4d03d["on_tool_end()"]
  3431946e_3bda_d7f5_8ceb_4e455bf4d03d -->|calls| f3f30716_b889_9f3d_db23_c53fb64b7cf1
  style f3f30716_b889_9f3d_db23_c53fb64b7cf1 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/langchain_core/tracers/event_stream.py lines 632–652

    def _get_tool_run_info_with_inputs(self, run_id: UUID) -> tuple[RunInfo, Any]:
        """Get run info for a tool and extract inputs, with validation.

        Args:
            run_id: The run ID of the tool.

        Returns:
            A tuple of `(run_info, inputs)`.

        Raises:
            AssertionError: If the run ID is a tool call and does not have inputs.
        """
        run_info = self.run_map.pop(run_id)
        if "inputs" not in run_info:
            msg = (
                f"Run ID {run_id} is a tool call and is expected to have "
                f"inputs associated with it."
            )
            raise AssertionError(msg)
        inputs = run_info["inputs"]
        return run_info, inputs

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Defined In

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Frequently Asked Questions

What does _get_tool_run_info_with_inputs() do?
_get_tool_run_info_with_inputs() is a function in the langchain codebase, defined in libs/core/langchain_core/tracers/event_stream.py.
Where is _get_tool_run_info_with_inputs() defined?
_get_tool_run_info_with_inputs() is defined in libs/core/langchain_core/tracers/event_stream.py at line 632.
What calls _get_tool_run_info_with_inputs()?
_get_tool_run_info_with_inputs() is called by 2 function(s): on_tool_end, on_tool_error.

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