code: def test_init_from_storage(self):
      self.submissions.init_from_storage_write_to_datastore()
      self.verify_submissions()
      self.verify_datastore_entities()
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import unittest
  from six import assertCountEqual
  from eval_lib import submissions
  from eval_lib.tests import fake_cloud_client
label_desc: Use image node_id 4 for calling the SubmissionsTest obj's underlying member method code with example usage: obj.test_init_from_storage() without return types