code: def test_union_sort_other_incomparable_sort():
      idx = MultiIndex.from_product(
          [[1, pd.Timestamp("2000")], ["a", "b"]]
      )
      msg = (
          "'<' not supported between instances of 'Timestamp' and 'int'"
      )
      with pytest.raises(TypeError, match=msg):
          idx.union(idx[:1], sort=True)
  
imports: import numpy
  import pytest
  import pandas
  from pandas import CategoricalIndex, DataFrame, Index, IntervalIndex, MultiIndex, Series
  import pandas._testing
  from pandas.api.types import is_float_dtype, is_unsigned_integer_dtype
label_desc: Use image node_id 23 for calling a global function with example usage: test_union_sort_other_incomparable_sort() without return types