code: def test_init_kwdargs(self):
      e = SubOSErrorWithInit("some message", bar="baz")
      self.assertEqual(e.bar, "baz")
      self.assertEqual(e.args, ("some message",))
  
imports: import builtins
  import os
  import select
  import socket
  import unittest
  import errno
  from errno import EEXIST
label_desc: Use image node_id 3 for calling the ExplicitSubclassingTest obj's underlying member method code with example usage: obj.test_init_kwdargs() without return types