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{-# LANGUAGE Haskell2010 #-}
{-# LANGUAGE PatternSynonyms #-}
{-# LANGUAGE PolyKinds #-}
{-# LANGUAGE ScopedTypeVariables #-}
{-# LANGUAGE StandaloneKindSignatures #-}
{-# LANGUAGE ViewPatterns #-}
module RepPolyPatSynArg where
import Data.Kind
import GHC.Exts
type X :: TYPE rep -> Type
data X a = MkX
pattern Pat :: forall rep (a :: TYPE rep). a -> X a
pattern Pat bndr_a <- ( undefined -> bndr_a )
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