[InstanceD [AppT (AppT EqualityT (VarT y_0)) (AppT (AppT ArrowT (VarT t_1)) (VarT t_1))] (AppT (ConT Ghci1.Member) (ConT GHC.Types.Bool)) []]
[SigD f_4 (ForallT [PlainTV y_2,PlainTV t_3] [AppT (AppT EqualityT (VarT y_2)) (AppT (AppT ArrowT (VarT t_3)) (VarT t_3))] (AppT (AppT ArrowT (VarT y_2)) (VarT t_3))),FunD f_4 [Clause [VarP x_5] (NormalB (VarE x_5)) []]]