def is_multigraph(self):
        return True
Fit a set of num_buckets subquantizers for corresponding subvectors.
dataset/ETHPy150Open networkx/networkx/networkx/classes/tests/timingclasses.py/TimingMultiDiGraph.is_multigraph--crossover with--dataset/ETHPy150Open yahoo/lopq/python/lopq/model.py/train_subquantizers