code: def test_dti_business_getitem(self, freq):
      rng = bdate_range(START, END, freq=freq)
      smaller = rng[:5]
      exp = DatetimeIndex(rng.view(np.ndarray)[:5], freq=freq)
      tm.assert_index_equal(smaller, exp)
      assert smaller.freq == exp.freq
      assert smaller.freq == rng.freq
  
      sliced = rng[::5]
      assert sliced.freq == to_offset(freq) * 5
  
      fancy_indexed = rng[[4, 3, 2, 1, 0]]
      assert len(fancy_indexed) == 5
      assert isinstance(fancy_indexed, DatetimeIndex)
      assert fancy_indexed.freq is None
  
      # 32-bit vs. 64-bit platforms
      assert rng[4] == rng[np_long(4)]
  
imports: from datetime import date, datetime, time, timedelta
  import numpy
  import pytest
  from pandas._libs import index
  from pandas.compat.numpy import np_long
  import pandas
  from pandas import DatetimeIndex, Index, Timestamp, bdate_range, date_range, notna
  import pandas._testing
  from pandas.tseries.frequencies import to_offset
label_desc: Use image node_id 3 for calling the TestGetItem obj's underlying member method code with example usage: obj.test_dti_business_getitem(freq) without return types