code: def test_xs_named_levels_axis_eq_1(
      self, key, level, exp_arr, exp_index
  ):
      # see GH#2903
      arr = np.random.default_rng(2).standard_normal((4, 4))
      index = MultiIndex(
          levels=[["a", "b"], ["bar", "foo", "hello", "world"]],
          codes=[[0, 0, 1, 1], [0, 1, 2, 3]],
          names=["lvl0", "lvl1"],
      )
      df = DataFrame(arr, columns=index)
      result = df.xs(key, level=level, axis=1)
      expected = DataFrame(exp_arr(arr), columns=exp_index)
      tm.assert_frame_equal(result, expected)
  
imports: import re
  import numpy
  import pytest
  from pandas.errors import SettingWithCopyError
  from pandas import DataFrame, Index, IndexSlice, MultiIndex, Series, concat
  import pandas._testing
  from pandas.tseries.offsets import BDay
label_desc: Use image node_id 9 for calling the TestXSWithMultiIndex obj's underlying member method code with example usage: obj.test_xs_named_levels_axis_eq_1(key, level, exp_arr, exp_index) without return types