@@ -1,6 +1,7 @@
1{-# LANGUAGE CPP #-}
1{-# LANGUAGE CPP #-}
2{-# LANGUAGE ConstraintKinds #-}
2{-# LANGUAGE ConstraintKinds #-}
3{-# LANGUAGE DataKinds #-}
3{-# LANGUAGE DataKinds #-}
4+{-# LANGUAGE DeriveDataTypeable #-}
4{-# LANGUAGE FlexibleContexts #-}
5{-# LANGUAGE FlexibleContexts #-}
5{-# LANGUAGE FlexibleInstances #-}
6{-# LANGUAGE FlexibleInstances #-}
6{-# LANGUAGE GeneralizedNewtypeDeriving #-}
7{-# LANGUAGE GeneralizedNewtypeDeriving #-}