code: def test_lu_2(size):
      rng = np.random.default_rng(10)
      A = rng.integers(0, 10, (size, size))
  
      dA = da.from_array(A, chunks=(5, 5))
      dp, dl, du = da.linalg.lu(dA)
      _check_lu_result(dp, dl, du, A)
  
imports: from __future__ import annotations
  import sys
  import pytest
  import numpy
  import scipy.linalg
  from packaging.version import parse
  import dask.array
  from dask.array.linalg import qr, sfqr, svd, svd_compressed, tsqr
  from dask.array.numpy_compat import _np_version
  from dask.array.utils import assert_eq, same_keys, svd_flip
label_desc: Use image node_id 16 for calling a global function with example usage: test_lu_2(size) without return types