code: def test_initializer(self):
      futures = [
          self.executor.submit(get_init_status)
          for _ in range(self.worker_count)
      ]
  
      for f in futures:
          self.assertEqual(f.result(), "initialized")
  
imports: import contextlib
  import logging
  import queue
  import time
  import unittest
  from concurrent.futures._base import BrokenExecutor
  from logging.handlers import QueueHandler
  from test import support
  from .util import ExecutorMixin, create_executor_tests, setup_module
label_desc: Use image node_id 2 for calling the InitializerMixin obj's underlying member method code with example usage: obj.test_initializer() without return types