Time.tz.field.valid: def of bend-kit-time@0.3.0.0
Import: import bend-kit-time@0.3.0.0/time.bend as Time
Lines 834-839 of bend-kit-time@0.3.0.0/time.bend: https://jend.leeeet.dev/read.txt?path=bend-kit-time@0.3.0.0/time.bend&start_line=834&end_line=839

import Base

def tz.field.valid(ok: Bool, n: U32, rest: String) -> Maybe<&2, TzField>:
  match ok:
    case True{}:
      Some{TzField{n, rest}}
    case False{}:
      None{}

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=bend-kit-time@0.3.0.0/time.bend&name=TzField