code: def test_dti_timestamp_fields(self, field):
      # extra fields from DatetimeIndex like quarter and week
      idx = date_range("2020-01-01", periods=10)
      expected = getattr(idx, field)[-1]
  
      result = getattr(Timestamp(idx[-1]), field)
      assert result == expected
  
imports: import calendar
  from datetime import date, datetime, time
  import locale
  import unicodedata
  import numpy
  import pytest
  from pandas._libs.tslibs import timezones
  from pandas import DatetimeIndex, Index, NaT, Timestamp, date_range, offsets
  import pandas._testing
  from pandas.core.arrays import DatetimeArray
label_desc: Use image node_id 7 for calling the TestDatetimeIndexOps obj's underlying member method code with example usage: obj.test_dti_timestamp_fields(field) without return types