code: def test_send_recv_different_threads(self):
      r, s = channels.create()
  
      def f():
          while True:
              try:
                  obj = r.recv()
                  break
              except channels.ChannelEmptyError:
                  time.sleep(0.1)
          s.send(obj)
  
      t = threading.Thread(target=f)
      t.start()
  
      orig = b"spam"
      s.send(orig)
      obj = r.recv()
      t.join()
  
      self.assertEqual(obj, orig)
      self.assertIsNot(obj, orig)
  
imports: import threading
  from textwrap import dedent
  import unittest
  import time
  from test.support import import_helper
  from test.support import interpreters
  from test.support.interpreters import channels
  from .utils import _run_output, TestBase
label_desc: Use image node_id 4 for calling the TestSendRecv obj's underlying member method code with example usage: obj.test_send_recv_different_threads() without return types