def __init__(self, num=<NUM_LIT:32>, port=<NUM_LIT>, **kwds):
super().__init__(num, address=port, **kwds)<EOL>
Args:
    num:  number of LEDs being visualizer.
    port:  the port on which the SimPixel server is running.
    pixel_positions:  the positions of the LEDs in 3-d space.
    **kwds:  keywords passed to DriverBase.