about the document of conditional use

[norci]

in file docs/src/installation/conditional.md

What about a generated function?
https://docs.julialang.org/en/v1/manual/metaprogramming/#Generated-functions

@generated function to_gpu_or_not_to_gpu(x::AbstractArray)
    if CUDA.functional()
        return :(CuArray(x))
    else
        return :(x)
    end
end

function __init__()
    to_gpu_or_not_to_gpu(ones(2))
end

I'm not sure if this code is better?

[maleadt]

You cannot use complicated stateful functionality like that in a generated function.
https://docs.julialang.org/en/v1/base/base/#Base.@generated