Btw, tried to implement Result[T] flatmaps etc, it looks uglier than err != nil

func myfunc(url string) Result[string] {

  tup := FromTuplePtr(http.Get(url))

  return FlatMap(tup, func(r http.Response) Result[string] {

    return Map(FromTuple(io.ReadAll(r.Body)), func(b []byte) string {

      return string(b)

    })

  })

}