/**
 * retry — exponential backoff with jitter and total budget cap.
 *
 * Learned from vally's RetryHelper: the total budget cap prevents
 * retry chains from blowing CI job timeouts even when individual retries
 * would succeed within their own delay.
 */
import type { RetryOptions } from "./types.js";
/**
 * Execute an async function with exponential backoff + budget.
 *
 * @throws The last error if all retries are exhausted or budget expires.
 */
export declare function withRetry<T>(fn: (attempt: number) => Promise<T>, options?: RetryOptions): Promise<T>;
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