SV* set_parent(SV* self, SV* parent) {
        ((Node*)SvIV(SvRV(self)))->parent = parent;
        SvREFCNT_inc(self);
        return self;
    }

##</code><code>##

	SV* get_parent(SV* self) {
		Node* me = (Node*)SvIV(SvRV(self));
		SV* parent = me->parent;
		SvREFCNT_inc(parent);
		return parent;
	}