import { EvaluationInput, EvaluatorConfig, EvaluatorResult } from '../types/evaluator.js';
export declare class Evaluator {
    readonly name: string;
    readonly timeout?: number;
    private readonly model;
    private readonly evaluationPrompt;
    private readonly scoreConfig;
    private readonly modelSettings?;
    private readonly templateRenderer;
    constructor(config: EvaluatorConfig);
    evaluate(input: EvaluationInput): Promise<EvaluatorResult>;
    private runEvaluation;
    private buildErrorResult;
    private executeEvaluation;
    private buildPrompt;
    private setTokenAttributes;
    private prepareVariables;
    private extractTokenUsage;
    private extractInputTokenDetails;
    private extractOutputTokenDetails;
    private createSchema;
    private formatScoreInstructions;
    static create(name: string, model: EvaluatorConfig["model"], options?: {
        evaluationPrompt?: string;
        scoreConfig?: EvaluatorConfig["scoreConfig"];
        timeout?: number;
        modelSettings?: EvaluatorConfig["modelSettings"];
        requireReference?: boolean;
    }): Evaluator;
}
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