code: def _full_speed_rumble(self, images, duration):
          
          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
docs: Simulate the motors running at full.