code: def _freeze_bn_callback(net, use_global_stats=True):
      from mxnet.gluon.nn import BatchNorm
  
      if isinstance(net, BatchNorm):
          net._kwargs["use_global_stats"] = use_global_stats
  
imports: import re
  import numpy
label_desc: Use image node_id 3 for calling a global function with example usage: _freeze_bn_callback(net, use_global_stats) without return types