I know it's not the best way, but you could try raising an issue against an active project in the same area using HMRC's github? e.g. https://github.com/hmrc/au

I know it's not the best way, but you could try raising an issue against an active project in the same area using HMRC's github? e.g. https://github.com/hmrc/auth-client https://github.com/hmrc/auth-client