@classmethod
    def black(cls):

        c = cls.__new__(cls, object)
        c._c = [0.0, 0.0, 0.0, 1.0]
        return c
Test that trying to download a message with a bad argument, either a
dataset/ETHPy150Open PythonProgramming/Beginning-Game-Development-with-Python-and-Pygame/gameobjects/color.py/ColorRGBA.black--crossover with--dataset/ETHPy150Open kuri65536/python-for-android/python-modules/twisted/twisted/mail/test/test_pop3.py/CommandMixin.testTOPWithBadArgument