Play WS client: process large response

WSProcessLargeResponseExample.scala

import play.api.libs.iteratee._

def fromStream(stream: OutputStream): Iteratee[Array[Byte], Unit] = Cont {
  case e@Input.EOF =>
    stream.close()
    Done((), e)
  case Input.El(data) =>
    stream.write(data)
    fromStream(stream)
  case Input.Empty =>
    fromStream(stream)
}

val outputStream: OutputStream = new BufferedOutputStream(new FileOutputStream(file))
val futureResponse = WS.url(url).withRequestTimeout(3000).get {
  headers => fromStream(outputStream)
}.map(_.run)

Done((), e) doesn't compile for me, found : [E]play.api.libs.iteratee.Step.Done[Unit,E] required: play.api.libs.iteratee.Iteratee[Array[Byte],Unit]. I had to add .it there and also to the end of Cont {}.