code: def test_series_item_incorrect_shape() -> None:
      s = pl.Series("a", [1, 2])
      with pytest.raises(ValueError):
          s.item()
  
file_path: polars/py-polars/tests/unit/series/test_item.py
imports: from __future__ import annotations
  import pytest
  import polars
label_desc: Use image node_id 3 for calling a global function with example usage: test_series_item_incorrect_shape() without return types