code: def test_categorical_dtype(categories, ordered):
      expected = pd.CategoricalDtype(
          categories=categories, ordered=ordered
      )
      got = cudf.CategoricalDtype(
          categories=categories, ordered=ordered
      )
      assert_eq(expected, got)
  
      expected = pd.CategoricalDtype(categories=categories)
      got = cudf.CategoricalDtype(categories=categories)
      assert_eq(expected, got)
  
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 28 for calling a global function with example usage: test_categorical_dtype(categories, ordered) without return types