Expose add-on board classes to the module

gpiozero/__init__.py

@@ -8,7 +8,7 @@ from .devices import (
     _gpio_threads_shutdown,
     GPIODeviceError,
     GPIODevice,
-    )
+)
 from .input_devices import (
     InputDeviceError,
     InputDevice,
@@ -23,6 +23,12 @@ from .output_devices import (
     Buzzer,
     Motor,
 )
+from .boards import (
+    TrafficLights
+    PiTraffic,
+    FishDish,
+    PiLiter,
+)
 
 
 def gpiozero_shutdown():