code: def test_loc_multiindex_list_missing_label(self, key, pos):
      # GH 27148 - lists with missing labels _do_ raise
      df = DataFrame(
          np.random.default_rng(2).standard_normal((3, 3)),
          columns=[[2, 2, 4], [6, 8, 10]],
          index=[[4, 4, 8], [8, 10, 12]],
      )
  
      with pytest.raises(KeyError, match="not in index"):
          df.loc[key]
  
imports: import numpy
  import pytest
  from pandas.errors import IndexingError, PerformanceWarning
  import pandas
  from pandas import DataFrame, Index, MultiIndex, Series
  import pandas._testing
label_desc: Use image node_id 10 for calling the TestMultiIndexLoc obj's underlying member method code with example usage: obj.test_loc_multiindex_list_missing_label(key, pos) without return types