Sequence separation

[Adam D. Ruppe via Digitalmars-d-learn]

On Tuesday, 16 August 2016 at 19:17:27 UTC, Engine Machine wrote:
> alias x = AliasSeq!(a, b, AliasSeq!(c, d));
>
> results in a flat sequence. I would like to be able to keep 
> them separate so I can have sub sequences.

wrap them in a struct.