Append variadic template parameters

[Mark Fisher via Digitalmars-d-learn]

I want to write a template:

static auto ref BindArg(alias Func,alias arg,args...)() {
        return Func(arg,args);
}
where Func is called with 'arg' followed by the 'args' parameters.
eg:

string f(string a,int b,int c);
BindArg(f,"1",2,3);

The compiler throws an error:
Error: function f (string a, int b, int c) is not callable using 
argument types ()

How do I append the parameters?