#NEWLINE# def _update_expiry( self , session_id , session_data ) : #NEWLINE# #INDENT# 'Called by ``DBConnection.retrieve_session`` if there is a change in ``TotoSession.expires`` to allow optional efficient updates.\n    If not implemented, ``self._store_session`` will be called.\n    ' #NEWLINE# return self . _store_session ( session_id , session_data )