call() — langchain Function Reference

Architecture documentation for the __call__() function in string_run_evaluator.py from the langchain codebase.

Function python LangChainCore Runnables calls 2

Entity Profile

LangChainCore→ Runnables→ __call__() — langchain Function Reference

Dependency Diagram

graph TD
  f56f231b_b6eb_b4a1_5171_9aa21c13ee17["__call__()"]
  e9537ec5_dd39_fde8_64f7_e16f805b8dbe["StringExampleMapper"]
  f56f231b_b6eb_b4a1_5171_9aa21c13ee17 -->|defined in| e9537ec5_dd39_fde8_64f7_e16f805b8dbe
  b15ccccb_1344_8d38_767a_922bd0d352ca["map()"]
  f56f231b_b6eb_b4a1_5171_9aa21c13ee17 -->|calls| b15ccccb_1344_8d38_767a_922bd0d352ca
  18ce5ec1_b967_6417_c994_9209a57f1c14["map()"]
  f56f231b_b6eb_b4a1_5171_9aa21c13ee17 -->|calls| 18ce5ec1_b967_6417_c994_9209a57f1c14
  style f56f231b_b6eb_b4a1_5171_9aa21c13ee17 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

libs/langchain/langchain_classic/smith/evaluation/string_run_evaluator.py lines 267–272

    def __call__(self, example: Example) -> dict[str, str]:
        """Maps the Run and Example to a dictionary."""
        if not example.outputs:
            msg = f"Example {example.id} has no outputs to use as areference label."
            raise ValueError(msg)
        return self.map(example)