module Data.Geo.GPX.Accessor.License where import Data.Geo.GPX.Accessor.Accessor class License a where license :: a -> Maybe String setLicense :: Maybe String -> a -> a setLicense' :: String -> a -> a setLicense' = setLicense . Just usingLicense :: (Maybe String -> Maybe String) -> a -> a usingLicense = license `using` setLicense usingLicense' :: (String -> String) -> a -> a usingLicense' = usingLicense . fmap