named arguments jumping to templates seems to be happening slowly, I mostly just want the details and ill make my own matching machinery

namedseq!(a:int,bool,f:float);
template namedseq(T....){//4 dots
  alias names=T.names;//["a","","f"]
  alias types=T.types;//(int,bool,float)
}

theres 3 cases I see mattering:
plain template template foo(T....)
manual template function template foo(T....){ void foo(T args)
template void foo(T....)(T args)