[Recompose] Refactor React Render Props to Streaming Props with RxJS and Recompose

const ToggleStream = componentFromStream(props$ => {
  const {
    handler: toggle,
    stream: toggle$
  } = createEventHandler()

  const on$ = Observable.merge(
    toggle$,
    Observable.interval(1000)
  )
    .startWith(true)
    .scan(bool => !bool)

  return props$.combineLatest(on$, (props, on) =>
    props.render({
      on,
      toggle
    })
  )
})