The newest adapter-creator also supports this type of adapter that we needed to work around in the current tests.
With a creat-adapter.json file like here and this "type" as seen in https://github.com/ioBroker/ioBroker.example/blob/4b820ae59d988e72b8a4623697f32445fa427340/TypeScriptWithoutBuild/.create-adapter.json#L28 you can generate such a template.
Please adjust the tests at https://github.com/ioBroker/dev-server/blob/main/test/pure-ts-adapters.test.js#L44-L63 and remove the manual handling and adjust the create file to directly create such an adapter.