fourmolu-0.2.0.0: data/examples/declaration/value/function/operators-6-four-out.hs

type PermuteRef =
    "a"
        :> ( "b" :> "c" :> End
                :<|> "c" :> "b" :> End
           )
        :<|> "b"
            :> ( "a" :> "c" :> End
                    :<|> "c" :> "a" :> End
               )