code: def test_find_by_id(self):
      self.submissions.init_from_storage_write_to_datastore()
      self.assertEqual(
          self.submissions.attacks["SUBA000"],
          self.submissions.find_by_id("SUBA000"),
      )
      self.assertEqual(
          self.submissions.targeted_attacks["SUBT001"],
          self.submissions.find_by_id("SUBT001"),
      )
      self.assertEqual(
          self.submissions.defenses["SUBD001"],
          self.submissions.find_by_id("SUBD001"),
      )
  
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 7 for calling the SubmissionsTest obj's underlying member method code with example usage: obj.test_find_by_id() without return types