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{-# LANGUAGE GADTs #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE TypeInType #-}
module T15215 where
import Data.Kind
data A :: Type -> Type where
MkA :: Show (Maybe a) => A a
data B :: Type -> Type where
MkB :: Show a => B a
data SA :: forall a. A a -> Type where
SMkA :: SA MkA
SMkB :: SA MkB
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