code: def test_get_loc_past_lexsort_depth(self):
      # GH#30053
      idx = MultiIndex(
          levels=[["a"], [0, 7], [1]],
          codes=[[0, 0], [1, 0], [0, 0]],
          names=["x", "y", "z"],
          sortorder=0,
      )
      key = ("a", 7)
  
      with tm.assert_produces_warning(PerformanceWarning):
          # PerformanceWarning: indexing past lexsort depth may impact performance
          result = idx.get_loc(key)
  
      assert result == slice(0, 1, None)
  
imports: from datetime import timedelta
  import re
  import numpy
  import pytest
  from pandas._libs import index
  from pandas.errors import InvalidIndexError, PerformanceWarning
  import pandas
  from pandas import Categorical, DataFrame, Index, MultiIndex, date_range
  import pandas._testing
label_desc: Use image node_id 11 for calling the TestGetLoc obj's underlying member method code with example usage: obj.test_get_loc_past_lexsort_depth() without return types