@abc.abstractmethod<EOL><INDENT>def get_days_for_month(self, year, month):<DEDENT>
return<EOL>
Gets the days of the given month in order of the calendar.

        :param year: a year
        :type year: ``integer``
        :param month: a ``DateTime`` month code
        :type month: ``cardinal``
        :return: the days
        :rtype: ``osid.locale.CalendarUnit``
        :raise: ``IllegalState`` -- ``year`` is greater than ``get_last_year_before_common_era()`` and less then ``get_first_year_in_common_era()`` , or ``month`` is greater than or equal to than ``get_months_for_year(year)``
        :raise: ``OperationFailed`` -- unable to complete request

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