code: def __call__(self, param):
      #
      num_update = param.num_update
      #
      if (
          num_update > 0 and num_update % self.verbose == 0
      ):  # debug in mbatches in 100 and 200
          # accuracy list
          self.ver_test(num_update)
  
imports: import logging
  import os
  import sys
  import time
  import horovod.mxnet
  import mxnet
  from mxboard import SummaryWriter
  from mxnet import nd
  from default import config
  from evaluation import verification
label_desc: Use image node_id 4 for calling the CallBackVertification obj's underlying member method code with example usage: obj.__call__(param) without return types