code: def subscriptions(self):
          
          if _debug: ChangeOfValueServices._debug("subscriptions")
  
          subscription_list = []
  
          # loop through the object and detection list
          for obj, cov_detection in self.cov_detections.items():
              for cov in cov_detection.cov_subscriptions:
                  subscription_list.append(cov)
  
          return subscription_list
docs: Generator for the active subscriptions.