code: def test_lu_reconstruction(self, dtype):
      m, n = self.shape
      A = testing.shaped_random(self.shape, cupy, dtype=dtype)
      if self.permute_l:
          PL, U = cupyx.scipy.linalg.lu(A, permute_l=self.permute_l)
          PLU = PL @ U
      else:
          P, L, U = cupyx.scipy.linalg.lu(A, permute_l=self.permute_l)
          PLU = P @ L @ U
      # check that reconstruction is close to original
      cupy.testing.assert_allclose(PLU, A, atol=1e-5)
  
file_path: cupy/tests/cupyx_tests/scipy_tests/linalg_tests/test_decomp_lu.py
imports: import unittest
  import warnings
  import numpy
  import cupy
  from cupy import testing
  import cupyx.scipy.linalg
label_desc: Use image node_id 2 for calling the TestLU obj's underlying member method code with example usage: obj.test_lu_reconstruction(dtype) without return types