code: def testGinBindingsInOtherProcess(self):
      # Serialize a function that we will call in subprocesses
      serialized_get_xval = pickle.dumps(get_xval)
  
      # get_xval accesses _XVAL, we set the state to 2 and will check that
      # subprocesses will see this value.
      global _XVAL
      _XVAL = 2
  
      ctx = multiprocessing.get_context()
  
      # Local function should easily access _XVAL
      local_queue = ctx.SimpleQueue()
      execute_pickled_fn(serialized_get_xval, local_queue)
      self.assertFalse(local_queue.empty())
      self.assertEqual(local_queue.get(), 2)
  
      # Remote function can access new _XVAL since part of running it
      # is serializing the state via XValStateSaver (passed to handle_test_main
      # below).
      remote_queue = ctx.SimpleQueue()
      p = ctx.Process(
          target=execute_pickled_fn,
          args=(serialized_get_xval, remote_queue),
      )
      p.start()
      p.join()
      self.assertFalse(remote_queue.empty())
      self.assertEqual(remote_queue.get(), 2)
  
file_path: agents/tf_agents/system/multiprocessing_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import pickle
  from tf_agents.system import system_multiprocessing
  from tf_agents.utils import test_utils
label_desc: Use image node_id 1 for calling the MultiprocessingTest obj's underlying member method code with example usage: obj.testGinBindingsInOtherProcess() without return types