code: def test_popen_error_with_stdin_pipe(self):
      # Issue #35721: check that newly created socket pair is closed when
      # Popen fails
      self.loop.run_until_complete(
          self._test_popen_error(stdin=subprocess.PIPE)
      )
  
imports: import os
  import signal
  import sys
  import textwrap
  import unittest
  import warnings
  from unittest import mock
  import asyncio
  from asyncio import base_subprocess
  from asyncio import subprocess
  from test.test_asyncio import utils
  from test import support
  from test.support import os_helper
label_desc: Use image node_id 25 for calling the SubprocessMixin obj's underlying member method code with example usage: obj.test_popen_error_with_stdin_pipe() without return types