{-# LANGUAGE NoImplicitPrelude #-} module Papa.Prelude.Core.Data.Traversable( mapM , sequence ) where import Control.Applicative(Applicative) import Data.Traversable(Traversable(traverse, sequenceA)) mapM :: (Traversable t, Applicative f) => (a -> f b) -> t a -> f (t b) mapM = traverse sequence :: (Traversable t, Applicative f) => t (f a) -> f (t a) sequence = sequenceA