schala/schala-lang/language/src/prelude.schala

type Option<T> = Some(T) | None
type Color = Red | Green | Blue
type Ord = LT | EQ | GT


fn map(input: Option<T>, func: Func): Option<T> {
  if input {
    is Some(x) -> Some(func(x)),
    is None -> None,
  }
}