code: def test_imagenet_models_bn_global_stats():
      models = [
          "resnet18_v1b",
          "resnet34_v1b",
          "resnet50_v1b",
          "resnet101_v1b",
          "resnet152_v1b",
      ]
      _test_bn_global_stats(models)
  
imports: from __future__ import print_function
  import warnings
  import logging
  import mxnet
  from mxnet.contrib.quantization import *
  from ..unittests.common import try_gpu, with_cpu
  import gluoncv
label_desc: Use image node_id 9 for calling a global function with example usage: test_imagenet_models_bn_global_stats() without return types