code: def _get_expected_exception(
      self, op_name: str, obj, other
  ) -> type[Exception] | None:
      return None
  
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 1 for calling the TestDecimalArray obj's underlying member method code with example usage: obj._get_expected_exception(op_name, obj, other) and returns: None