Save the updated fields to the cloud

def save_updates(self):
        """Save the updated fields to the cloud"""

        if not self._track_changes:
            return True  # there's nothing to update

        url = self.build_url(self._endpoints.get('update_list_item').format(item_id=self.object_id))
        update = {field: value for field, value in self.fields.items()
                  if self._cc(field) in self._track_changes}

        response = self.con.patch(url, update)
        if not response:
            return False
        self._clear_tracker()
        return True