def _get_count(self):
        raise NotImplementedError
Helper to update topomaps
dataset/ETHPy150Open amarandon/smeuhsocial/apps/pagination/paginator.py/InfinitePaginator._get_count--crossover with--dataset/ETHPy150Open mne-tools/mne-python/mne/viz/topomap.py/_plot_update_evoked_topomap