@property
    def indices(self):
        self._assure_grouper()
        return self.grouper.indices
Find zeros of ordinary Bessel polynomial of order `N`, by root-finding of
dataset/ETHPy150Open pydata/pandas/pandas/core/groupby.py/_GroupBy.indices--crossover with--dataset/ETHPy150Open scipy/scipy/scipy/signal/filter_design.py/_bessel_zeros