Woldemort Type can't even call "take" or "array"

[kerdemdemir via Digitalmars-d-learn]

> The solution may be as simple as importing std.array (or 
> std.range) but we can't be sure without a short but complete 
> code.

Solution was as simple as importing std.array. Thanks a lot again 
Ali.

Just for curiosity; why can't I use
numArr.take(3);

source\app.d(33): Error: no property 'take' for type 
'MapResult!(unaryFun, FilterResult!(__lambda3, 
FilterResult!(__lambda2, char[][][])))'.