docs: long getRequestTimeoutMillisForCurrentAttempt() {
      RetryHelper.Context context = RetryHelper.getContext();
      if (context == null) {
        return getRequestTimeoutMillis();
      }
      int attempt = context.getAttemptNumber();
      return getExponentialValue(
          requestTimeoutMillis, requestTimeoutRetryFactor, maxRequestTimeout, attempt);
    }