code: public void report(final ThresholdLogSpan span) {
          if (isOverThreshold(span)) {
              if (!overThresholdQueue.offer(span)) {
                  LOGGER.debug("Could not enqueue span {} for over threshold reporting, discarding.", span);
              }
          }
      }
docs: Reports the given span, but it doesn't have to be a potential slow.
  
  This method, based on its configuration, will figure out if the given
  span is indeed eligible for being part in the log.
  
  @param span the span to report.