docs: def set_flashing(self, duration, hsv1, hsv2):
          """Turn the bulb on, flashing with two colors."""
          self.set_transition_time(100)
          for step in range(0, int(duration/2)):
              self.set_color_hsv(hsv1[0], hsv1[1], hsv1[2])
              time.sleep(1)
              self.set_color_hsv(hsv2[0], hsv2[1], hsv2[2])
              time.sleep(1)