code: def global_dtype(request):
      yield request.param
  
imports: import builtins
  import platform
  import sys
  from contextlib import suppress
  from functools import wraps
  from os import environ
  from unittest import SkipTest
  import joblib
  import numpy
  import pytest
  from _pytest.doctest import DoctestItem
  from threadpoolctl import threadpool_limits
  from sklearn import config_context, set_config
  from sklearn._min_dependencies import PYTEST_MIN_VERSION
  from sklearn.datasets import fetch_20newsgroups, fetch_20newsgroups_vectorized, fetch_california_housing, fetch_covtype, fetch_kddcup99, fetch_olivetti_faces, fetch_rcv1
  from sklearn.tests import random_seed
  from sklearn.utils import _IS_32BIT
  from sklearn.utils.fixes import np_base_version, parse_version, sp_version
label_desc: Use image node_id 3 for calling a global function with example usage: global_dtype(request) without return types