code: def test_freedesktop_os_release(self):
      self.addCleanup(self.clear_caches)
      self.clear_caches()
  
      if any(
          os.path.isfile(fn) for fn in platform._os_release_candidates
      ):
          info = platform.freedesktop_os_release()
          self.assertIn("NAME", info)
          self.assertIn("ID", info)
  
          info["CPYTHON_TEST"] = "test"
          self.assertNotIn(
              "CPYTHON_TEST", platform.freedesktop_os_release()
          )
      else:
          with self.assertRaises(OSError):
              platform.freedesktop_os_release()
  
imports: import os
  import copy
  import pickle
  import platform
  import subprocess
  import sys
  import unittest
  from unittest import mock
  from test import support
  from test.support import os_helper
label_desc: Use image node_id 33 for calling the PlatformTest obj's underlying member method code with example usage: obj.test_freedesktop_os_release() without return types