code: def test_dt_round_nonnano_higher_resolution_no_op(self, freq):
      # GH 52761
      ser = Series(
          [
              "2020-05-31 08:00:00",
              "2000-12-31 04:00:05",
              "1800-03-14 07:30:20",
          ],
          dtype="datetime64[ms]",
      )
      expected = ser.copy()
      result = ser.dt.round(freq)
      tm.assert_series_equal(result, expected)
  
      assert not np.shares_memory(
          ser.array._ndarray, result.array._ndarray
      )
  
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 14 for calling the TestSeriesDatetimeValues obj's underlying member method code with example usage: obj.test_dt_round_nonnano_higher_resolution_no_op(freq) without return types