from.attribute(extraAttribute, 'foo')
                        to.attribute(extraAttribute, 'bar')
                    }
                    registerTransform(BrokenTransform) {
                        from.attribute(artifactType, 'custom')
                        to.attribute(artifactType, 'transformed')
                        from.attribute(extraAttribute, 'foo')

        auto flex_builder = std::make_unique<flexbuffers::Builder>();
        size_t map_start = flex_builder->StartMap();
        auto attrs = vhlo_op->getAttrs();
        std::vector<mlir::NamedAttribute> extra_attributes;

        for (size_t i = 0; i < attrs.size(); ++i) {
          auto name = attrs[i].getName().str();
          auto attr = attrs[i].getValue();