code: def test_astype_categories_raises(self):
      # deprecated GH#17636, removed in GH#27141
      ser = Series(["a", "b", "a"])
      with pytest.raises(TypeError, match="got an unexpected"):
          ser.astype("category", categories=["a", "b"], ordered=True)
  
imports: from datetime import datetime, timedelta
  from importlib import reload
  import string
  import sys
  import numpy
  import pytest
  from pandas._libs.tslibs import iNaT
  import pandas.util._test_decorators
  from pandas import NA, Categorical, CategoricalDtype, DatetimeTZDtype, Index, Interval, NaT, Series, Timedelta, Timestamp, cut, date_range, to_datetime
  import pandas._testing
label_desc: Use image node_id 6 for calling the TestAstypeCategorical obj's underlying member method code with example usage: obj.test_astype_categories_raises() without return types