import { Request, Response, Sender, Sleeper } from "./types";
export default class RetrySender {
    private maxRetries;
    private statusToRetry;
    private statusTooManyRequests;
    private maxBackoffDuration;
    private inner;
    private sleeper;
    constructor(maxRetries: number | undefined, inner: Sender, sleeper: Sleeper);
    send(request: Request): Promise<Response>;
    private trySend;
    private backoff;
    private rateLimitBackOff;
}