ocr_numbers type

[sotolf2]

For this task the naming of the last output variant type is confusing and will easily lead to type errors in the solution

pub type Output {
  Unknown
  Digit(Int)
  List(List(Output))
}

fn ocr_line(line: List(List(String))) -> List(Output) {

  io.debug(line)
  [Unknown]
}

fn ocr(lines: List(List(String))) -> Output {
  lines
  |> list.sized_chunk(4)
  |> list.map(ocr_line)
}

But gleam isn't happy and says:

   ┌─ /home/torerling/exercism/gleam/ocr-numbers/src/ocr_numbers.gleam:24:3
   │
24 │ ╭   lines
25 │ │   |> list.sized_chunk(4)
26 │ │   |> list.map(ocr_line)
   │ ╰───────────────────────^

The type of this returned value doesn't match the return type
annotation of this function.

Expected type:

    Output

Found type:

    List(List(Output))

It makes it very easy to assume that List(List(Output)) is an output? But it's not since it's the gleam list
Maybe it would be better to have something like

pub type Output {
  Unknown
  Digit(Int)
  Digits(List(Output))
}

or the like.

[lpil]

Good idea, yes please.