def has_sub_optional
import cli@0.2.0.0/cli.bend as Cliimport Base
2229def has_sub_optional(items: List<&2, Item>) -> Bool:
2230 match items:
2231 case Nil{}: False{}
2232 case SubOptional{} <> tail: True{}
2233 case head <> tail: has_sub_optional(tail)