code: @Override
      public void retry(JusError error) throws JusError {
          if(errorFilter != null && !errorFilter.apply(error)) {
              throw error;
          }
          mCurrentRetryCount++;
          currentTimeoutMs = (int) (currentTimeoutMs * backoffMultiplier);
          if (!hasAttemptRemaining()) {
              throw error;
          }
      }
docs: Prepares for the next retry by applying a backoff to the timeout.
  @param error The error code of the last attempt.