code: public Map<String, String> results(TimeUnit timeUnit, boolean includeTimes) {
          return results(null, timeUnit, includeTimes);
      }
docs: Computes and returns the results from the benchmark aggregating the
  statistics of all the output variables
  
  @param timeUnit is the unit of time of the results
  @param includeTimes indicates whether to include the times of each run
  @return the results from the benchmark