code: def refresh(self):
          
          refreshed = self.client.get_item_list(self.url())
          self.item_urls = refreshed.urls()
          self.list_name = refreshed.name()
          return self
docs: Update this ItemList by re-downloading it from the server
  
          :rtype: ItemList
          :returns: this ItemList, after the refresh
  
          :raises: APIError if the API request is not successful