code: def _get_test_network():
      net = nn.Sequential()
      net.add(nn.Dense(4, activation="relu", flatten=False))
      return net
  
file_path: mxnet/tests/python/unittest/test_gluon_batch_processor.py
imports: import sys
  import unittest
  import warnings
  import mxnet
  from mxnet import gluon
  from mxnet.gluon import nn
  from mxnet.gluon.contrib.estimator import *
  from mxnet.gluon.contrib.estimator.event_handler import *
  from mxnet.gluon.contrib.estimator.batch_processor import BatchProcessor
  import pytest
label_desc: Use image node_id 1 for calling a global function with example usage: _get_test_network() and returns: net