code: function gotTotal(err, total, models) {
              var last;
              var continuation;
              //generate or use a continuation token;
              if (models.length > 0 && opts.limit) {
                  last = models[models.length - 1];
  
                  if (typeof last.__verymeta.extra === 'object') {
                      if (last.__verymeta.extra.continuation) {
                          continuation = last.__verymeta.extra.continuation;
                      }
                  }
              }
              opts.cb(err, models, {count: models.length, offset: offset, limit: limit, continuation: continuation, total: total});
          }
docs: called when all is done