@utilities.arguments_not_none<EOL><INDENT>def get_assessments_taken_by_record_type(self, assessment_taken_record_type):<DEDENT>
<EOL>return objects.AssessmentTakenList([])<EOL>
Gets an ``AssessmentTakenList`` corresponding to the given assessment taken record ``Type``.

        The set of assessments implementing the given record type is
        returned. In plenary mode, the returned list contains all known
        assessments taken or an error results. Otherwise, the returned
        list may contain only those assessments taken that are
        accessible through this session. In both cases, the order of the
        set is not specified.

        arg:    assessment_taken_record_type (osid.type.Type): an
                assessment taken record type
        return: (osid.assessment.AssessmentTakenList) - the returned
                ``AssessmentTaken`` list
        raise:  NullArgument - ``assessment_taken_record_type`` is
                ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure occurred
        *compliance: mandatory -- This method must be implemented.*