export interface RetryOptions {
    retries?: number;
    delay?: number;
    backoff?: "fixed" | "exponential" | "linear";
    jitter?: boolean;
    shouldRetry?: (error: unknown, attempt: number) => boolean;
    onRetry?: (error: unknown, attempt: number) => void;
    signal?: AbortSignal;
}
/**
 * Retries an async function until it succeeds or the retry budget is exhausted.
 * Supports fixed, linear, or exponential backoff, optional jitter, and
 * AbortSignal cancellation.
 *
 * @template T - Return type of the function
 * @param {() => Promise<T>} function_ - The async function to invoke
 * @param {RetryOptions} [options] - Retry configuration
 * @returns {Promise<T>} Result of the first successful invocation
 * @example
 * await retry(() => fetch("/api"), { retries: 5, backoff: "exponential", jitter: true });
 */
export declare const retry: <T>(function_: () => Promise<T>, options?: RetryOptions) => Promise<T>;