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{-# LANGUAGE PolyKinds, DataKinds, TypeFamilies, UndecidableInstances,
StandaloneKindSignatures #-}
module T9151 where
import Data.Kind
import Data.Proxy
type PEnum :: KProxy a -> Constraint
class PEnum (kproxy :: KProxy a) where
type ToEnum (x :: a) :: Bool
type ToEnum x = TEHelper
type TEHelper = ToEnum Int
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