code: def test_cat_iterate_error():
      s = cudf.Series([1, 2, 3], dtype="category")
      with pytest.raises(TypeError):
          iter(s.cat)
  
imports: import operator
  import string
  import warnings
  from contextlib import contextmanager
  from textwrap import dedent
  import numpy
  import pandas
  import pytest
  import cudf
  from cudf.core._compat import PANDAS_GE_134
  from cudf.testing._utils import NUMERIC_TYPES, assert_eq, assert_exceptions_equal, expect_warning_if
label_desc: Use image node_id 40 for calling a global function with example usage: test_cat_iterate_error() without return types