code: def test_iter_zoneinfo_fold(self, tz):
      # GH#49684
      utc_vals = np.array(
          [1320552000, 1320555600, 1320559200, 1320562800],
          dtype=np.int64,
      )
      utc_vals *= 1_000_000_000
  
      dta = (
          DatetimeArray._from_sequence(utc_vals)
          .tz_localize("UTC")
          .tz_convert(tz)
      )
  
      left = dta[2]
      right = list(dta)[2]
      assert str(left) == str(right)
      # previously there was a bug where with non-pytz right would be
      #  Timestamp('2011-11-06 01:00:00-0400', tz='US/Eastern')
      # while left would be
      #  Timestamp('2011-11-06 01:00:00-0500', tz='US/Eastern')
      # The .value's would match (so they would compare as equal),
      #  but the folds would not
      assert left.utcoffset() == right.utcoffset()
  
      # The same bug in ints_to_pydatetime affected .astype, so we test
      #  that here.
      right2 = dta.astype(object)[2]
      assert str(left) == str(right2)
      assert left.utcoffset() == right2.utcoffset()
  
imports: from __future__ import annotations
  from datetime import timedelta
  import operator
  import numpy
  import pytest
  from pandas._libs.tslibs import tz_compare
  from pandas.core.dtypes.dtypes import DatetimeTZDtype
  import pandas
  import pandas._testing
  from pandas.core.arrays import DatetimeArray, TimedeltaArray
label_desc: Use image node_id 26 for calling the TestDatetimeArray obj's underlying member method code with example usage: obj.test_iter_zoneinfo_fold(tz) without return types