code: def pipe(self):
      def ensure_closed(fd):
          try:
              os.close(fd)
          except OSError:
              pass
  
      r, w = os.pipe()
      self.addCleanup(lambda: ensure_closed(r))
      self.addCleanup(lambda: ensure_closed(w))
      return r, w
  
imports: import contextlib
  import os
  import os.path
  import subprocess
  import sys
  import tempfile
  import threading
  from textwrap import dedent
  import unittest
  from test import support
  from test.support import os_helper
  from test.support import interpreters
label_desc: Use image node_id 1 for calling the TestBase obj's underlying member method code with example usage: obj.pipe() and returns: r,  w