heftia-0.4.0.0: higher-order effects done right

Index - !

!!Control.Monad.Hefty.Types, Control.Monad.Hefty
!!+Data.Effect.OpenUnion.Internal.HO, Data.Effect.OpenUnion, Control.Monad.Hefty
!+Data.Effect.OpenUnion.Internal.FO, Data.Effect.OpenUnion, Control.Monad.Hefty