fourmolu-0.0.6.0: data/examples/declaration/signature/minimal/minimal.hs
class Foo a where
{-# MINIMAL (==) |( (/=) , foo) #-}
{-# MINIMAL a | (b , c , d | e
, f)
| g #-}
(==) :: a -> a -> Bool
(/=) :: a -> a -> Bool