code folding

[Inquie via Digitalmars-d-learn]

Does D have any nice way to specify a block for cold folding? I 
have a very large set of structs and I'd like to be able to code 
fold them all at once and together.

I have been using

static if(true)
{
     ... junk
}

but the static if is uninformative since that is the only line 
that is shown when folded. A comment helps but still kinda ugly.

C# has #regions and hopefully D has something as useful.