code: def __iter__(self):
      return iter(self.data)
  
imports: import gzip
  import json
  import os
  import re
  from functools import partial
  from importlib import resources
  from io import BytesIO
  from urllib.error import HTTPError
  import numpy
  import pytest
  import scipy.sparse
  import sklearn
  from sklearn import config_context
  from sklearn.datasets import fetch_openml
  from sklearn.datasets._openml import _OPENML_PREFIX, _get_local_path, _open_openml_url, _retry_with_clean_cache
  from sklearn.utils import Bunch, check_pandas_support
  from sklearn.utils._testing import SkipTest, assert_allclose, assert_array_equal, fails_if_pypy
label_desc: Use image node_id 5 for calling the _MockHTTPResponse obj's underlying member method code with example usage: obj.__iter__() and returns: iter