code: def update(self, photo, **kwds):
          
          result = self._client.post("/photo/%s/update.json" %
                                     self._extract_id(photo),
                                     **kwds)["result"]
          return Photo(self._client, result)
docs: Endpoint: /photo/<id>/update.json
  
          Updates a photo with the specified parameters.
          Returns the updated photo object.