def clean.lf
import bend-kit-redis@0.3.0.0/redis.bend as Redisimport Base
import bend-kit-bytes@0.3.3.0/bytes.bend as Bytes
121def clean.lf(+cr: Bool, r: Bytes.Bytes & Maybe<&2, U32>) -> Bytes.Bytes & Bool:
122 (b, m) = r
123 (b, Bool.and(cr, none(m)))