@abc.abstractmethod<EOL><INDENT>def get_time_types_for_calendar_type(self, calendar_type):<DEDENT>
return<EOL>
Gets the list of time types supported for a given calendar type where they are both used in a ``DateTime``.

        :param calendar_type: the type of the calendar
        :type calendar_type: ``osid.type.Type``
        :return: the list of supported time types
        :rtype: ``osid.type.TypeList``
        :raise: ``NullArgument`` -- ``calendar_type`` is ``null``

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