def hello.check
import bend-kit-redis@0.3.0.0/redis.bend as Redisimport Base
888def hello.check(c: Conn, e: Maybe<&1, Val>) -> IO(Result<&1, &1, Failure, Conn>):
889 match e:
890 case None{}:
891 IO.pure(Result<&1, &1, Failure, Conn>, Done{c})
892 case Some{v}:
893 do IO<Result<&1, &1, Failure, Conn>>:
894 close(c)
895 return Fail{Rejected{v}}