code: def test_xs_droplevel_false(self):
      # GH#19056
      df = DataFrame([[1, 2, 3]], columns=Index(["a", "b", "c"]))
      result = df.xs("a", axis=1, drop_level=False)
      expected = DataFrame({"a": [1]})
      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 17 for calling the TestXSWithMultiIndex obj's underlying member method code with example usage: obj.test_xs_droplevel_false() without return types