System.GPIO.Monad
data Pin
data PinInputMode
data PinOutputMode
data PinCapabilities
data PinDirection
data PinActiveLevel
data PinValue
data PinInterruptMode
MonadGpio signatures.type MaskGpioM h m
type ThrowGpioM h m
class MonadGpio h m
data InputPin h
data InterruptPin h
data OutputPin h
data SomeGpioException