code: def setUp(self):
      self.datastore_client = fake_cloud_client.FakeDatastoreClient()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import copy
  import unittest
  from six import assertCountEqual
  from six import itervalues
  from eval_lib import work_data
  from eval_lib.tests import fake_cloud_client
label_desc: Use image node_id 1 for calling the DefenseWorkPiecesTest obj's underlying member method code with example usage: obj.setUp() without return types