@abc.abstractmethod<EOL><INDENT>def delete_assessment_taken(self, assessment_taken_id):<DEDENT>
pass<EOL>
Deletes an ``AssessmentTaken``.

        :param assessment_taken_id: the ``Id`` of the ``AssessmentTaken`` to remove
        :type assessment_taken_id: ``osid.id.Id``
        :raise: ``NotFound`` -- ``assessment_taken_id`` 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.*