code: def test_nested_struct_in_lists_cast() -> None:
      assert pl.DataFrame(
          {
              "node_groups": [
                  [{"nodes": [{"id": 1, "is_started": True}]}],
                  [{"nodes": []}],
              ]
          }
      ).to_dict(as_series=False) == {
          "node_groups": [
              [{"nodes": [{"id": 1, "is_started": True}]}],
              [{"nodes": []}],
          ]
      }
  
imports: from __future__ import annotations
  from dataclasses import dataclass
  from datetime import datetime, time
  from typing import TYPE_CHECKING
  import pandas
  import pyarrow
  import pytest
  import polars
  import polars.selectors
  from polars.testing import assert_frame_equal, assert_series_equal
label_desc: Use image node_id 38 for calling a global function with example usage: test_nested_struct_in_lists_cast() without return types