code: def test_categorical_list_get_item() -> None:
      out = pl.Series([["a"]]).cast(pl.List(pl.Categorical)).item()
      assert isinstance(out, pl.Series)
      assert out.dtype == pl.Categorical
  
imports: from __future__ import annotations
  import contextlib
  import io
  import operator
  from typing import TYPE_CHECKING, Any, Callable, Literal
  import pytest
  import polars
  from polars import StringCache
  from polars.exceptions import CategoricalRemappingWarning, StringCacheMismatchError
  from polars.testing import assert_frame_equal, assert_series_equal
label_desc: Use image node_id 26 for calling a global function with example usage: test_categorical_list_get_item() without return types