Checking for Homogeneous Tuples

[Nordlöw via Digitalmars-d-learn]

How do I check that all the elements of a std.typecons.Tuple all 
fulfil a specific predicate, in my case all have a specific type:

Something like
    import std.typecons : isTuple;
    enum isTupleOf(T, E) = isTuple!T && is(MAGIC(T, E));