I’m sorry if this is a stupid question, but I could not find it in the docs (nor solve it myself). I have a type `A`

parametrized with a number `N`

. How can I make this work:

```
struct A{N}
x::Array{Float64, N-1}
y::Array{Float64, N}
end
```

The problem is of course the `N-1`

. Thanks in advance!