@abc.abstractmethod<EOL><INDENT>def get_assessment_sections(self, assessment_taken_id):<DEDENT>
return<EOL>
Gets the assessment sections of this assessment.

        :param assessment_taken_id: ``Id`` of the ``AssessmentTaken``
        :type assessment_taken_id: ``osid.id.Id``
        :return: the list of assessment sections
        :rtype: ``osid.assessment.AssessmentSectionList``
        :raise: ``IllegalState`` -- ``has_assessment_begun()`` is ``false``
        :raise: ``NotFound`` -- ``assessment_taken_id`` is not found
        :raise: ``NullArgument`` -- ``assessment_taken_id`` is ``null``
        :raise: ``OperationFailed`` -- unable to complete request
        :raise: ``PermissionDenied`` -- authorization failure occurred

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