@abc.abstractmethod<EOL><INDENT>def set_week_of_month(self, week):<DEDENT>
pass<EOL>
Sets the week of the month of a weekly schedule.

        :param week: the new week of the month
        :type week: ``integer``
        :raise: ``InvalidArgument`` -- ``week`` is invalid
        :raise: ``NoAccess`` -- ``week`` cannot be modified

        *compliance: mandatory -- This method must be implemented.*