ChristopherDavenport

import cats.effect._
// import cats._
import cats.syntax.all._
import scala.concurrent.duration._
trait FakeIO[A]{
  def unsafeRunAsync(f: Either[Throwable, A] => Unit): Unit
}
object FakeIO {
  def delay[A](thunk: => A): FakeIO[A] = Async{cb: (Either[Throwable, A]=> Unit) => cb(Either.catchNonFatal(thunk))}
  def async[A](f: (Either[Throwable, A] => Unit) => Unit): FakeIO[A] = Async{cb =>