code: def patch_url_redirection(mocker, redirect_url):
      class Response:
          def __init__(self, url):
              self.url = url
  
      @contextlib.contextmanager
      def patched_opener(*args, **kwargs):
          yield Response(redirect_url)
  
      return mocker.patch(
          "torchvision.datasets.utils.urllib.request.urlopen",
          side_effect=patched_opener,
      )
  
imports: import contextlib
  import gzip
  import os
  import pathlib
  import re
  import tarfile
  import zipfile
  import pytest
  import torch
  import torchvision.datasets.utils
  from common_utils import assert_equal
  from torch._utils_internal import get_file_path_2
  from torchvision.datasets.folder import make_dataset
  from torchvision.datasets.utils import _COMPRESSED_FILE_OPENERS
label_desc: Use image node_id 1 for calling a global function with example usage: patch_url_redirection(mocker, redirect_url) and returns: mocker