code: def test_dt_round(self, method, dates):
      # round
      ser = Series(
          pd.to_datetime(
              [
                  "2012-01-01 13:00:00",
                  "2012-01-01 12:01:00",
                  "2012-01-01 08:00:00",
              ]
          ),
          name="xxx",
      )
      result = getattr(ser.dt, method)("D")
      expected = Series(pd.to_datetime(dates), name="xxx")
      tm.assert_series_equal(result, expected)
  
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 10 for calling the TestSeriesDatetimeValues obj's underlying member method code with example usage: obj.test_dt_round(method, dates) without return types