úÎŒ  SafeSafe        truth_61kxgo9m8Rf9v1vC5m1Qq5 Data.TruthfulControl.Monad.TruthfulTruthful isTruthful notTruthful$fTruthfulEither$fTruthfulMaybe $fTruthful[]$fTruthfulBool whenTruthfulunlessTruthful whenTruthful1