@abc.abstractmethod<EOL><INDENT>def register_for_changed_assessments_offered(self):<DEDENT>
pass<EOL>
Registers for notification of updated assessments offered.

        ``AssessmentOfferedReceiver.changedAssessmentsOffered()`` is
        invoked when an assessment offered in this assessment bank is
        changed.

        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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