def _full_speed_rumble(self, images, duration):
        """Simulate the motors running at full."""
        while duration > 0:
            self.microbit.display.show(images[0])  # pylint: disable=no-member
            time.sleep(0.04)
            self.microbit.display.show(images[1])  # pylint: disable=no-member
            time.sleep(0.04)
            duration -= 0.08
Simulate the motors running at full.