ShahOdin

import scala.concurrent.duration.Duration
import scala.concurrent.{Await, ExecutionContext, Future}

object ParImpl {
  sealed trait Par[A] {
    def toFuture(implicit ec: ExecutionContext): Future[A] = {
      this match {
        case Par.Unit(f) => Future(f())
        case x:Par.Map2[A,_,_] =>
          for {