code: function nextJobs(start, stop, callback) {
              if (queued_jobs.length === 0) {
                  return callback(null, null);
              }
  
              var slice = queued_jobs.slice(start, stop + 1);
  
              if (slice.length === 0) {
                  return callback(null, null);
              } else {
                  return callback(null, slice);
              }
          }
docs: Get the given number of queued jobs uuids. - start - Integer - Position of the first job to retrieve - stop - Integer - Position of the last job to retrieve, _included_ - callback - f(err, jobs)