4343 chart

# indie:force_py_runner# indie:lang_version = 5from indie import indicator, format, param, plot, colorfrom indie.algorithms import SinceLowest, SinceHighest@indicator('Aroon', format=format.PRICE)  # TODO: format=format.PERCENT@param.int('length', default=14, min=1)@plot.line(color=color.BLUE, title='Aroon Down')@plot.line(color=color.YELLOW, title='Aroon Up')def Main(self, length):    lo_offset = SinceLowest.new(self.low, length)    hi_offset = SinceHighest.new(self.high, length)    down = 100 * (length - lo_offset[0]) / length    up = 100 * (length - hi_offset[0]) / length    return down, up