code: def lit_count(self):
          
          lit_value = self.value * len(self)
          if not isinstance(self[0], PWMLED):
              lit_value = int(lit_value)
          return lit_value
docs: The number of LEDs on the bar graph actually lit up. Note that just
          like :attr:`value`, this can be negative if the LEDs are lit from last
          to first.