code: def no_read_permissions(path):
      perm_orig = stat.S_IMODE(os.stat(path).st_mode)
      perm_new = perm_orig ^ stat.S_IREAD
      try:
          os.chmod(path, perm_new)
          yield
      finally:
          os.chmod(path, perm_orig)
  
imports: from __future__ import annotations
  import os
  import site
  import stat
  import sys
  from collections import OrderedDict
  from contextlib import contextmanager
  import pytest
  import yaml
  import dask.config
  from dask.config import _get_paths, canonical_name, collect, collect_env, collect_yaml, config, deserialize, ensure_file, expand_environment_variables, get, merge, pop, refresh, rename, serialize, update, update_defaults
  from dask.utils import tmpfile
label_desc: Use image node_id 10 for calling a global function with example usage: no_read_permissions(path) without return types