How to collect "some" items of a range in an array?

[Renato]

Is there any Phobos function that collects "some" items of a 
range into an array/slice?
It's kind of embarrassing that I've been trying to find this for 
hours now without success :(.

I think I know how to write this myself (though writing generic 
stuff on ranges is not exactly straightforward), but surely there 
is something for this and I am somehow missing it (even AI can't 
help me)?

My use case is to parse a file format where a line is expected to 
have 4 items. I am currently using `takeExactly(4)` but that 
doesn't let me index on it, so I can only think of doing 
inconvenient (and inefficient) stuff like `front, skip(1).front 
...` to avoid having to write my own `toArray` :D. I couldn't 
even find a method to take 1 item and advance the range! Am I 
just looking at the entirely wrong places (std.range, 
std.algorithm.iteration)??