@utilities.arguments_not_none<EOL><INDENT>def move_sequence_rule_ahead(self, sequence_rule_id, assessment_part_id, reference_id):<DEDENT>
raise errors.Unimplemented()<EOL>
Reorders sequence rule for a source assessment part by moving the specified sequence rule in front of a reference sequence rule.

        arg:    sequence_rule_id (osid.id.Id): the ``Id`` of a
                ``SequenceRule``
        arg:    assessment_part_id (osid.id.Id): the ``Id`` of an
                ``AssessmentPart``
        arg:    reference_id (osid.id.Id): the reference sequence rule
                ``Id``
        raise:  NotFound - ``sequence_rule_id, assessment_part_id,`` or
                ``reference_id`` not found or, ``sequence_rule_id`` or
                ``reference_id`` not related to ``assessment_part_id``
        raise:  NullArgument - ``sequence_rule_id, assessment_part_id,``
                or ``reference_id`` is ``null``
        raise:  OperationFailed - unable to complete request
        raise:  PermissionDenied - authorization failure
        *compliance: mandatory -- This method must be implemented.*