code: def test_ndjson_list_arg(io_files_path: Path) -> None:
      first = io_files_path / "foods1.ndjson"
      second = io_files_path / "foods2.ndjson"
  
      df = pl.scan_ndjson(source=[first, second]).collect()
      assert df.shape == (54, 4)
      assert df.row(-1) == ("seafood", 194, 12.0, 1)
      assert df.row(0) == ("vegetables", 45, 0.5, 2)
  
file_path: polars/py-polars/tests/unit/io/test_lazy_json.py
imports: from __future__ import annotations
  from typing import TYPE_CHECKING
  import pytest
  import polars
  from polars.testing import assert_frame_equal
label_desc: Use image node_id 7 for calling a global function with example usage: test_ndjson_list_arg(io_files_path) without return types