code: def test_column_unsupported_types() -> None:
      s = pl.Series("a", [[4], [5, 6]])
      col = PolarsColumn(s)
  
      # Certain column operations work
      assert col.num_chunks() == 1
  
      # Error is raised when unsupported operations are requested
      with pytest.raises(ValueError, match="not supported"):
          col.dtype
  
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 27 for calling a global function with example usage: test_column_unsupported_types() without return types