expand variadic template parameters

[André]

Hi,

in this minified example I try to expand the variadic parmaters of
foo to bar:

import std.typecons;

void foo(T ...)(T args)
{
     bar(args.expand);
}

void bar(int i, string s){}

void main()
{
        foo(1, "a");
}

I got the syntax error: no property 'expand' for type '(int,
string)'
I understand args is a TypeTuple and therefore expand is not
working.
Is there a simple way to get it working?

Kind regards
André