When I have a tuple type of the form julia> dt = (Int...,) (Int64...,) julia> eltype(dt) Any
How do I extract Int64 from that tuple of that form?
I was hoping I could borrow ideas from reflection.jl:
eltype{T}(x::(T...)) = T
which works for values, like eltype( (1,2,3,4,5) ) -> Int, but I couldn't
make it work for actual ... inside x.
