/**
 * Returns true if the given error is a transient kintone REST API error
 * worth retrying: any 5xx, or an entry in RETRYABLE_KINTONE_ERRORS.
 */
export declare const isRetryableKintoneError: (e: unknown) => boolean;
/**
 * Retry given function with exponential backoff with jitter strategy.
 * Delay time before retry increases exponentially until it reaches maxDelay.
 * @param fn A function to run.
 * @param options Options.
 * @param options.onError Callback function on rejection on each attempt.
 * @param options.retryCondition Condition function for whether to retry.
 * @param options.maxAttempt Max attempt count. Default to 5.
 * @param options.initialDelay Initial delay milliseconds before retry. Default to 1000ms.
 * @param options.maxDelay Maximum delay milliseconds before retry. Default to 60,000ms. The maxDelay value is inclusive.
 * @param options.maxJitter Maximum jitter milliseconds. Default to 1000ms. The maxJitter value is exclusive.
 */
export declare const retry: <T>(fn: () => Promise<T> | T, options?: {
    onError?: (e: unknown, attemptCount: number, toRetry: boolean, nextDelay: number, config: {
        maxAttempt: number;
        initialDelay: number;
        maxDelay: number;
        maxJitter: number;
    }) => void | Promise<void>;
    retryCondition?: (error: unknown) => boolean;
    maxAttempt?: number;
    initialDelay?: number;
    maxDelay?: number;
    maxJitter?: number;
}) => Promise<T>;