composition-extra-1.2.0: Combinators for unorthodox structure composition
Control.Monad.Syntax.Two
(==<<) :: Monad m => (a -> b -> m c) -> m a -> b -> m c infixl 1 Source
(=.<<) :: Monad m => (a -> b -> m c) -> m b -> a -> m c infixl 1 Source