def _find_one_after_last_labeled_index(self):
        body_index = 0
        while self.bodies[body_index].segment_id in self.state.body_labels:
            body_index += 1
        return body_index
def test_impl(n):
            df = pd.DataFrame({'A': np.arange(0, n, 1, np.int32)})
            return df.A.quantile(.25)