Companion class SetF

SetF.scala

object SetF {
def lift[A](f: Future[A]): SetF[A] = SetF(f.map(Set(_)))
def apply[A](o: Iterable[A]): SetF[A] = 
    SetF(Future.successful(o match {
      case o: Set[_] => o.asInstanceOf[Set[A]]
      case o         => o.toSet
      }))
}