code: def test_dt_namespace_accessor_datetime64tz(self):
      # GH#7207, GH#11128
      # test .dt namespace accessor
  
      # datetimeindex with tz
      dti = date_range("20130101", periods=5, tz="US/Eastern")
      ser = Series(dti, name="xxx")
      for prop in ok_for_dt:
          # we test freq below
          if prop != "freq":
              self._compare(ser, prop)
  
      for prop in ok_for_dt_methods:
          getattr(ser.dt, prop)
  
      msg = "The behavior of DatetimeProperties.to_pydatetime is deprecated"
      with tm.assert_produces_warning(FutureWarning, match=msg):
          result = ser.dt.to_pydatetime()
      assert isinstance(result, np.ndarray)
      assert result.dtype == object
  
      result = ser.dt.tz_convert("CET")
      expected = Series(
          ser._values.tz_convert("CET"), index=ser.index, name="xxx"
      )
      tm.assert_series_equal(result, expected)
  
      tz_result = result.dt.tz
      assert str(tz_result) == "CET"
      freq_result = ser.dt.freq
      assert freq_result == DatetimeIndex(ser.values, freq="infer").freq
  
imports: import calendar
  from datetime import date, datetime, time
  import locale
  import unicodedata
  import numpy
  import pytest
  import pytz
  from pandas._libs.tslibs.timezones import maybe_get_tz
  from pandas.errors import SettingWithCopyError
  from pandas.core.dtypes.common import is_integer_dtype, is_list_like
  import pandas
  from pandas import DataFrame, DatetimeIndex, Index, Period, PeriodIndex, Series, TimedeltaIndex, date_range, period_range, timedelta_range
  import pandas._testing
  from pandas.core.arrays import DatetimeArray, PeriodArray, TimedeltaArray
label_desc: Use image node_id 3 for calling the TestSeriesDatetimeValues obj's underlying member method code with example usage: obj.test_dt_namespace_accessor_datetime64tz() without return types