def test_supported_lights():
"""The supported_lights() classmethod returns a list of
USBLight concrete subclasses.
"""
supported_lights = USBLight.supported_lights()
assert isinstance(supported_lights, list)
for light in supported_lights:
assert issubclass(light, USBLight)
def supported_lights() -> list:
"""A list of supported USBLight subclasses."""
return USBLight.supported_lights()