HI, Thanks for that. I don't understand "we don't bundle the code, but just took some part of it”. Either the code is in the source release or not in the source release; if any part of it is in the source release, then it is bundled. The LICENSE and NOTICE files need to relate to what is included in the release artefact. Looking at both those PRs, it seems in both cases, you do bundle code, but I understand why you might not want to mention th autogenerated code. Either way, I think a little more is needed here to make the NOTICE file in line with ASF policy.
Kind Regards, Justin