_runnable() — langchain Function Reference

Architecture documentation for the _runnable() function in test_fallbacks.py from the langchain codebase.

Function python CoreAbstractions RunnableInterface

Entity Profile

CoreAbstractions→ RunnableInterface→ _runnable() — langchain Function Reference

Dependency Diagram

graph TD
  6ad0850d_2210_9e3e_3868_2e8676344427["_runnable()"]
  d62d478e_a330_c328_7da4_58e88d780807["test_fallbacks.py"]
  6ad0850d_2210_9e3e_3868_2e8676344427 -->|defined in| d62d478e_a330_c328_7da4_58e88d780807
  style 6ad0850d_2210_9e3e_3868_2e8676344427 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/core/tests/unit_tests/runnables/test_fallbacks.py lines 104–114

def _runnable(inputs: dict[str, Any]) -> str:
    if inputs["text"] == "foo":
        return "first"
    if "exception" not in inputs:
        msg = "missing exception"
        raise ValueError(msg)
    if inputs["text"] == "bar":
        return "second"
    if isinstance(inputs["exception"], ValueError):
        raise RuntimeError  # noqa: TRY004
    return "third"