def count.zero
import bolt@1.27.0.0/src/lsp/frame.bend as Frameimport Base
220# is the count zero?
221def count.zero(ds: List<&2, Digit>) -> Bool:
222 match ds:
223 case Nil{}:
224 True{}
225 case Con{D0{}, t}:
226 count.zero(t)
227 case Con{d, t}:
228 False{}