code: def test_compare_scalar(self, data, comparison_op):
      ser = pd.Series(data)
      self._compare_other(ser, data, comparison_op, 0.5)
  
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 6 for calling the TestDecimalArray obj's underlying member method code with example usage: obj.test_compare_scalar(data, comparison_op) without return types