code: def refresh(self):
          
          self.invalidate()
          full = not self._manager._list_has_name
          res_list = self._manager.list(full_properties=full)
          self.update_from(res_list)
docs: Refresh the Name-URI cache from the HMC.
  
          This is done by invalidating the cache, listing the resources of this
          manager from the HMC, and populating the cache with that information.