code: def _init(self, M, N, K, device):
      pass
  
file_path: pytorch/benchmarks/operator_benchmark/pt/qbatchnorm_test.py
imports: import torch
  import operator_benchmark
label_desc: Use image node_id 2 for calling the QBatchNormBenchmark obj's underlying member method code with example usage: obj._init(M, N, K, device) without return types