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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def save(self, **kwargs):
 """Save the changes made to the object to the server. The object is updated to match what the server returns. Args: **kwargs: Extra options to send to the server (e.g. sudo) Raise: GitlabAuthenticationError: If authentication is not correct GitlabUpdateError: If the server cannot perform the request """

        updated_data = self._get_updated_data()
        # Nothing to update. Server fails if sent an empty dict.
        if not updated_data:
            return

        # call the manager
        obj_id = self.get_id()
        server_data = self.manager.update(obj_id, updated_data, **kwargs)
        if server_data is not None:
            self._update_attrs(server_data)