Function getLangchainStringEvaluator

getLangchainStringEvaluator(
    type: "criteria" | "labeled_criteria",
    options: EmbeddingDistanceEvalChainInput & {} & {
        formatEvaluatorInputs?: (
            run: Run,
            example: Example,
        ) => { input?: string; prediction: string; reference?: string };
    },
): Promise<(run: Run, example: Example) => Promise<{ key: string }>>
Parameters
- type: "criteria" | "labeled_criteria"
  Type of string evaluator, one of "criteria" or "labeled_criteria
- options: EmbeddingDistanceEvalChainInput & {} & {
      formatEvaluatorInputs?: (
          run: Run,
          example: Example,
      ) => { input?: string; prediction: string; reference?: string };
  }
  Options for loading the evaluator
Returns Promise<(run: Run, example: Example) => Promise<{ key: string }>>
Evaluator consumable by evaluate

Deprecated
Use evaluate instead.

This utility function loads a LangChain string evaluator and returns a function which can be used by newer evaluate function.
- Defined in remotes/langchain-ai/langsmith-sdk/main/js/src/evaluation/langchain.ts:40