code: def test_pickle_compat_0_14_1(self, datapath):
      hdays = [datetime(2013, 1, 1) for ele in range(4)]
      pth = datapath("tseries", "offsets", "data", "cday-0.14.1.pickle")
      cday0_14_1 = read_pickle(pth)
      cday = CDay(holidays=hdays)
      assert cday == cday0_14_1
  
file_path: pandas/pandas/tests/tseries/offsets/test_custom_business_day.py
imports: from datetime import datetime, timedelta
  import numpy
  import pytest
  from pandas._libs.tslibs.offsets import CDay
  from pandas import _testing, read_pickle
  from pandas.tests.tseries.offsets.common import assert_offset_equal
  from pandas.tseries.holiday import USFederalHolidayCalendar
label_desc: Use image node_id 7 for calling the TestCustomBusinessDay obj's underlying member method code with example usage: obj.test_pickle_compat_0_14_1(datapath) without return types