code: def test_hrectangular(self):
      self._test_common_lu_factor(self.hrect)
  
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 3 for calling the TestLUFactor obj's underlying member method code with example usage: obj.test_hrectangular() without return types