Flatten a range of static arrays

[Dennis]

On Friday, 7 February 2020 at 20:31:47 UTC, Steven Schveighoffer 
wrote:
> The only solution I can provide is to wrap the static array 
> into a range (maybe something like this exists in Phobos?):

Thanks. I was hoping something like that existed in Phobos, but I 
can't find anything.