## is_total(index) {#int} Determines whether the data point at the specified index is a total. Applies only to Waterfall charts. ```python def is_total(self, index: int): ... ``` | Parameter | Type......the start value, the subtotal and the final value are totals...growth", "2022 growth", "2022"], values=[100, 0.57, -0.25, 100.32,...