Tuple and tie?

[Remo via Digitalmars-d-learn]

How to make something that work like std::tie in D2 ?
Tuple!(float, float) sinCos(float n) {
  return tuple(cast(float)sin(n), cast(float)cos(n)); //please 
note cast(float)!
}

int main(string[] argv) {
 float s,c;
 tie!(s,c) = sinCos(3.0f);
}