def get(self): # Check if the list name is provided list_key = self.request.get('list_key') changed_content_str = self.request.get('changed_content') try: # Add the new list to the database changed_content = JSON.decode(changed_content_str) new_content = ItemList.update_content(list_key, changed_content) # Respond with the list key self.response.set_status(201) self.response.write(new_content) except Exception as e: # Respond with the error self.response.set_status(406) self.response.write(str(e))