code: def _fail(reason):
      def deco(test_item):
          if isinstance(test_item, type):
              # whole class is decorated
              def _f(self, *_args, **_kwargs):
                  raise RuntimeError(reason)
  
              test_item.setUp = _f
              return test_item
  
          # A method is decorated
          @functools.wraps(test_item)
          def f(*_args, **_kwargs):
              raise RuntimeError(reason)
  
          return f
  
      return deco
  
imports: import functools
  import os.path
  import shutil
  import subprocess
  import sys
  import tempfile
  import time
  import unittest
  from itertools import zip_longest
  import torch
  import torchaudio
  import torio
  from torch.testing._internal.common_utils import TestCase
  from torchaudio._internal.module_utils import eval_env, is_module_available
  from torchaudio.utils.ffmpeg_utils import get_video_decoders, get_video_encoders
label_desc: Use image node_id 3 for calling a global function with example usage: _fail(reason) and returns: deco, f, test_item