code: def test_describe_categorical_other_dtype() -> None:
      s = pl.Series(["a", "b", "a"], dtype=pl.String)
      col = PolarsColumn(s)
      with pytest.raises(TypeError):
          col.describe_categorical
  
imports: from __future__ import annotations
  from datetime import datetime
  from typing import TYPE_CHECKING
  import pytest
  import polars
  from polars.interchange.column import PolarsColumn
  from polars.interchange.protocol import ColumnNullType, CopyNotAllowedError, DtypeKind
  from polars.testing import assert_series_equal
label_desc: Use image node_id 9 for calling a global function with example usage: test_describe_categorical_other_dtype() without return types