code: public BulkActivitiesService getBulkActivitiesService() {
          if (_bulkActivitiesService == null) {
              synchronized (CCApi2.class) {
                  if (_bulkActivitiesService == null) {
                      _bulkActivitiesService = _retrofit.create(BulkActivitiesService.class);
                  }
              }
          }
  
          return _bulkActivitiesService;
      }
docs: Gets the bulk activities service.
  
  @return the bulk activities service