code: def manage_subscription():
      
      subscription = processor.create_parameter_subscription([
          '/YSS/SIMULATOR/BatteryVoltage1'
      ])
  
      sleep(5)
  
      print('Adding extra items to the existing subscription...')
      subscription.add([
          '/YSS/SIMULATOR/Alpha',
          '/YSS/SIMULATOR/BatteryVoltage2',
          'MDB:OPS Name/SIMULATOR_PrimBusVoltage1',
      ])
  
      sleep(5)
  
      print('Shrinking subscription...')
      subscription.remove('/YSS/SIMULATOR/Alpha')
  
      print('Cancelling the subscription...')
      subscription.cancel()
  
      print('Last values from cache:')
      print(subscription.get_value('/YSS/SIMULATOR/BatteryVoltage1'))
      print(subscription.get_value('/YSS/SIMULATOR/BatteryVoltage2'))
      print(subscription.get_value('/YSS/SIMULATOR/Alpha'))
      print(subscription.get_value('MDB:OPS Name/SIMULATOR_PrimBusVoltage1'))
docs: Shows how to interact with a parameter subscription.