/**
 * @file Implements the RetryManager class for handling evaluation retries.
 */
import type { EvaluationResult, TextGenerationOptions } from "../types/index.js";
/**
 * Manages the retry logic for the auto-evaluation middleware. It decides if a
 * retry is warranted based on the evaluation score and prepares the options
 * for the next generation attempt by incorporating feedback into the prompt.
 */
export declare class RetryManager {
    private maxRetries;
    constructor(maxRetries?: number);
    /**
     * Determines if a retry should be attempted based on the evaluation result.
     *
     * @param evaluation The `EvaluationResult` of the last attempt.
     * @returns `true` if the response did not pass and the maximum number of retries has not been reached.
     */
    shouldRetry(evaluation: EvaluationResult): boolean;
    /**
     * Prepares the options for the next generation attempt by creating a new,
     * improved prompt that includes feedback from the failed evaluation.
     *
     * @param originalOptions The original `TextGenerationOptions` from the user request.
     * @param evaluation The `EvaluationResult` of the failed attempt.
     * @returns A new `TextGenerationOptions` object with an improved prompt.
     */
    prepareRetryOptions(originalOptions: TextGenerationOptions, evaluation: EvaluationResult): TextGenerationOptions;
    /**
     * Builds a new prompt for a retry attempt by incorporating feedback from the
     * evaluation. The instructions become progressively more direct with each attempt.
     *
     * @param originalPrompt The user's original prompt.
     * @param feedback The constructive feedback from the evaluation.
     * @param attemptNumber The upcoming attempt number (e.g., 2 for the first retry).
     * @returns A new, enhanced prompt string.
     */
    private buildRetryPrompt;
}