/**
 * Dead Letter Queue Pattern - Handle failed messages
 */
import { AsyncFunction, Logger } from "../types/common";
export interface DeadLetterQueueOptions<TInput = any, TResult = any> {
    execute: AsyncFunction<TResult, TInput extends undefined ? [] : [TInput]>;
    maxRetries?: number;
    retryDelay?: number;
    message?: TInput;
    shouldRetry?: (error: Error, attempt: number) => boolean;
    onDeadLetter: (error: Error, message?: TInput) => void | Promise<void>;
    logger?: Logger;
}
export interface DeadLetterQueueResult<TResult = any> {
    success: boolean;
    value?: TResult;
    error?: Error;
}
export declare function deadLetterQueue<TResult = any, TInput = any>(options: DeadLetterQueueOptions<TInput, TResult>): Promise<DeadLetterQueueResult<TResult>>;
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