@abc.abstractmethod<EOL><INDENT>def alias_assessment_offered(self, assessment_offered_id, alias_id):<DEDENT>
pass<EOL>
Adds an ``Id`` to an ``AssessmentOffered`` for the purpose of creating compatibility.

        The primary ``Id`` of the ``AssessmentOffered`` is determined by
        the provider. The new ``Id`` is an alias to the primary ``Id``.
        If the alias is a pointer to another assessment offered, it is
        reassigned to the given assessment offered ``Id``.

        :param assessment_offered_id: the ``Id`` of an ``AssessmentOffered``
        :type assessment_offered_id: ``osid.id.Id``
        :param alias_id: the alias ``Id``
        :type alias_id: ``osid.id.Id``
        :raise: ``AlreadyExists`` -- ``alias_id`` is in use as a primary ``Id``
        :raise: ``NotFound`` -- ``assessment_offered_id`` not found
        :raise: ``NullArgument`` -- ``assessment_offered_id`` or ``alias_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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