@abc.abstractmethod<EOL><INDENT>def get_bank_ids_by_assessment_offered(self, assessment_offered_id):<DEDENT>
return<EOL>
Gets the list of ``Bank``  ``Ids`` mapped to an ``AssessmentOffered``.

        :param assessment_offered_id: ``Id`` of an ``AssessmentOffered``
        :type assessment_offered_id: ``osid.id.Id``
        :return: list of bank ``Ids``
        :rtype: ``osid.id.IdList``
        :raise: ``NotFound`` -- ``assessment_offered_id`` is not found
        :raise: ``NullArgument`` -- ``assessment_offered_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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