code: def test_init_standalone(self):
      # __init__ doesn't propagate to OSError.__init__ (see issue #15229)
      e = SubOSErrorWithStandaloneInit()
      self.assertEqual(e.args, ())
      self.assertEqual(str(e), "")
  
imports: import builtins
  import os
  import select
  import socket
  import unittest
  import errno
  from errno import EEXIST
label_desc: Use image node_id 7 for calling the ExplicitSubclassingTest obj's underlying member method code with example usage: obj.test_init_standalone() without return types