code: def test_create(self):
      r, s = channels.create()
      self.assertIsInstance(r, channels.RecvChannel)
      self.assertIsInstance(s, channels.SendChannel)
  
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 1 for calling the TestChannels obj's underlying member method code with example usage: obj.test_create() without return types