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{-# LANGUAGE DataKinds #-}
{-# LANGUAGE KindSignatures #-}
{-# LANGUAGE TypeFamilyDependencies #-}
{-# LANGUAGE TypeOperators #-}
module T12522a where
newtype I a = I a
type family Curry (as :: [*]) b = f | f -> as b where
Curry '[] b = I b
Curry (a:as) b = a -> Curry as b
data Uncurried (as :: [*]) b
def :: Curry as b -> Uncurried as b
def = undefined
-- test :: Uncurried [Int, String] String
test = def $ \n s -> I $ show n ++ s
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