code: def test_deser_empty_list() -> None:
      s = pickle.loads(pickle.dumps(pl.Series([[[42.0]], []])))
      assert s.dtype == pl.List(pl.List(pl.Float64))
      assert s.to_list() == [[[42.0]], []]
  
imports: from __future__ import annotations
  import io
  import pickle
  from datetime import datetime, timedelta
  import pytest
  import polars
  from polars import StringCache
  from polars.testing import assert_frame_equal, assert_series_equal
label_desc: Use image node_id 9 for calling a global function with example usage: test_deser_empty_list() without return types