code: def get_last_scene_id(self, refresh=False):
          
          if refresh:
              self.refresh_complex_value('LastSceneID')
              self.refresh_complex_value('sl_CentralScene')
          val = self.get_complex_value('LastSceneID') or self.get_complex_value('sl_CentralScene')
          return val
docs: Get last scene id.
  
          Refresh data from Vera if refresh is True, otherwise use local cache.
          Refresh is only needed if you're not using subscriptions.