code: def _merge_report(self, target, new):
          
          time = None
          if 'ts' in new['parsed']:
              time = new['parsed']['ts']
  
          if (target.get('lastSeenDate', None) and
                  time and
                      target['lastSeenDate'] < time):
              target['lastSeenDate'] = time
  
          query_millis = int(new['parsed']['stats']['millis'])
          target['stats']['totalTimeMillis'] += query_millis
          target['stats']['count'] += 1
          target['stats']['avgTimeMillis'] = target['stats']['totalTimeMillis'] / target['stats']['count']
docs: Merges a new report into the target report