code: def test_apply_index(self, case):
      # https://github.com/pandas-dev/pandas/issues/34580
      offset, cases = case
      shift = DatetimeIndex(cases.keys())
      exp = DatetimeIndex(cases.values())
  
      with tm.assert_produces_warning(None):
          # GH#22535 check that we don't get a FutureWarning from adding
          # an integer array to PeriodIndex
          result = offset + shift
      tm.assert_index_equal(result, exp)
  
imports: from __future__ import annotations
  from datetime import datetime
  import pytest
  from pandas._libs.tslibs import Timestamp
  from pandas._libs.tslibs.offsets import MonthBegin, MonthEnd, SemiMonthBegin, SemiMonthEnd
  from pandas import DatetimeIndex, Series, _testing
  from pandas.tests.tseries.offsets.common import assert_is_on_offset, assert_offset_equal
label_desc: Use image node_id 3 for calling the TestSemiMonthEnd obj's underlying member method code with example usage: obj.test_apply_index(case) without return types