code: def test_drop_duplicates_inplace(self, index):
      msg = r"drop_duplicates\(\) got an unexpected keyword argument"
      with pytest.raises(TypeError, match=msg):
          index.drop_duplicates(inplace=True)
  
imports: from copy import copy, deepcopy
  import re
  import numpy
  import pytest
  from pandas.compat import IS64
  from pandas.compat.numpy import np_version_gte1p25
  from pandas.core.dtypes.common import is_integer_dtype, is_numeric_dtype
  import pandas
  from pandas import CategoricalIndex, MultiIndex, PeriodIndex, RangeIndex
  import pandas._testing
label_desc: Use image node_id 16 for calling the TestCommon obj's underlying member method code with example usage: obj.test_drop_duplicates_inplace(index) without return types