ref: b4c123bea759f3436972fc6a6a173f3715581ea3
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