def METHOD_NAME(
    self,
    data: pd.DataFrame,
    adjusted_lookback=500,
    adjusted_min_periods=20,
    **other_kwargs,
):
    """
    eg    return self.data.ewm(span=adjusted_lookback,
                      min_periods=adjusted_min_periods).mean()
    """
    raise NotImplementedError("Need to inherit dont' use")