import type { ISupplyDataFunctions } from 'n8n-workflow';
interface RetryableError extends Error {
    code?: string;
    status?: number;
    retriesLeft?: number;
}
/**
 * Handler function type for failed attempts (retry logic)
 */
export type FailedAttemptHandler = (error: RetryableError) => void | Promise<void>;
/**
 * This function returns a custom failed attempt handler for using with language models.
 * It first tries to use a custom handler passed as an argument, and if that doesn't throw an error, it uses the default handler.
 * It always wraps the error in a NodeApiError.
 * It throws an error ONLY if there are no retries left.
 */
export declare const makeN8nLlmFailedAttemptHandler: (ctx: ISupplyDataFunctions, handler?: FailedAttemptHandler) => FailedAttemptHandler;
export {};
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