code: def test_intersection_bug(self):
      # GH #771
      a = bdate_range("11/30/2011", "12/31/2011")
      b = bdate_range("12/10/2011", "12/20/2011")
      result = a.intersection(b)
      tm.assert_index_equal(result, b)
      assert result.freq == b.freq
  
imports: from datetime import datetime, timezone
  import numpy
  import pytest
  import pytz
  import pandas.util._test_decorators
  import pandas
  from pandas import DataFrame, DatetimeIndex, Index, Series, Timestamp, bdate_range, date_range
  import pandas._testing
  from pandas.tseries.offsets import BMonthEnd, Minute, MonthEnd
label_desc: Use image node_id 4 for calling the TestBusinessDatetimeIndex obj's underlying member method code with example usage: obj.test_intersection_bug() without return types