langchain.js
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    Type Alias EvaluatorT

    EvaluatorT:
        | DeprecatedRunEvaluator
        | DeprecatedFunctionEvaluator
        | DeprecatedAsyncFunctionEvaluator
        | (
            (
                args: {
                    attachments?: Record<string, any>;
                    example: Example;
                    inputs: Record<string, any>;
                    outputs: Record<string, any>;
                    referenceOutputs?: Record<string, any>;
                    run: Run;
                },
            ) => EvaluationResult
            | EvaluationResult[]
            | EvaluationResults
        )
        | (
            (
                args: {
                    attachments?: Record<string, any>;
                    example: Example;
                    inputs: Record<string, any>;
                    outputs: Record<string, any>;
                    referenceOutputs?: Record<string, any>;
                    run: Run;
                },
            ) => Promise<EvaluationResult | EvaluationResult[] | EvaluationResults>
        )