How do I use mixin types?

[Adam D. Ruppe]

On Friday, 2 August 2019 at 21:10:08 UTC, Andrej wrote:
> The D spec mentions something called mixin types:

This is brand new to the spec and hasn't yet been released in a 
compiler.

You can get a nightly build here 
https://dlang.org/changelog/pending.html to maybe try, but I 
don't think it will be in a proper release until ... my guess is 
Sept 1.