code: def test_lu(self):
      a0 = self.rng.random((10, 10))
      b = self.rng.random((10,))
  
      for order in ["C", "F"]:
          a = np.array(a0, order=order)
          x1 = solve(a, b)
          lu_a = lu_factor(a)
          x2 = lu_solve(lu_a, b)
          assert_allclose(x1, x2)
  
imports: import pytest
  from pytest import raises
  import numpy
  from scipy.linalg import lu, lu_factor, lu_solve, get_lapack_funcs, solve
  from numpy.testing import assert_allclose, assert_array_equal
label_desc: Use image node_id 2 for calling the TestLUSolve obj's underlying member method code with example usage: obj.test_lu() without return types