def tz.rule.dates
import bend-kit-time@0.3.0.0/time.bend as Timeimport Base
1002def tz.rule.dates(+standard: Ttype, +daylight: Ttype, rest: String) -> Maybe<&2, TzRule>:
1003 do Maybe<&2, TzRule>:
1004 a : TzDatePart <- tz.date(tz.after(',', rest))
1005 tz.rule.start(a, standard, daylight)