ref: 1aa307355c68e60a2cfb8be104ad6f2783d7bd14
dir: /tests/TypeApp.hs/
module TypeApp where import Data.Typeable foo :: forall a b . (a, b) foo = (undefined, undefined) main :: IO () main = do print $ read @Int "123" let (x, y) = foo @_ @Bool print $ typeOf y