@abc.abstractmethod<EOL><INDENT>def get_demographic(self):<DEDENT>
return<EOL>
Gets the demographic resource.

        :return: the resource representing the demographic
        :rtype: ``osid.resource.Resource``
        :raise: ``IllegalState`` -- ``is_effective_for_demographic()`` is ``false``
        :raise: ``OperationFailed`` -- unable to complete request

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