void foo(A, B, C)(A a, B b, C c) { writeln(a, b, c) }

// is logically equivalent to:

auto foo(A, B, C)
{
    // # means "expression that follows should be evaluated at compile-time".
    // In this case, # forces the return value to be a compile-time function object
    // (not run-time pointer)
    return #(A a, B b, C c)-> { writeln(a, b, c) }
}

void main()
{
    auto args = {1, "two", 3.0}
    foo(args.typeof)(args.flat)

    alias bar = foo(bool, string)
    bar(true, "blah")
}