code: def skip_unless_dac_override(test):
      ok = can_dac_override()
      msg = "requires CAP_DAC_OVERRIDE"
      return test if ok else unittest.skip(msg)(test)
  
imports: import collections.abc
  import contextlib
  import errno
  import os
  import re
  import stat
  import string
  import sys
  import time
  import unittest
  import warnings
  from test import support
label_desc: Use image node_id 10 for calling a global function with example usage: skip_unless_dac_override(test) and returns: unknown