code: def test_fillna_series_method(self, data_missing, fillna_method):
      msg = "|".join(
          [
              "ExtensionArray.fillna 'method' keyword is deprecated",
              "The 'method' keyword in DecimalArray.fillna is deprecated",
          ]
      )
      with tm.assert_produces_warning(
          (FutureWarning, DeprecationWarning),
          match=msg,
          check_stacklevel=False,
      ):
          super().test_fillna_series_method(data_missing, fillna_method)
  
imports: from __future__ import annotations
  import decimal
  import operator
  import numpy
  import pytest
  import pandas
  import pandas._testing
  from pandas.tests.extension import base
  from pandas.tests.extension.decimal.array import DecimalArray, DecimalDtype, make_data, to_decimal
label_desc: Use image node_id 15 for calling the TestDecimalArray obj's underlying member method code with example usage: obj.test_fillna_series_method(data_missing, fillna_method) without return types