code: def test_stationary_solve_1d():
      b = np.random.uniform(size=10)
      r = np.random.uniform(size=9)
      t = np.concatenate((np.r_[1], r))
      tmat = toeplitz(t)
      soln = np.linalg.solve(tmat, b)
      soln1 = linalg.stationary_solve(r, b)
      assert_allclose(soln, soln1, rtol=1e-5, atol=1e-5)
  
imports: from statsmodels.tools import linalg
  import numpy
  from numpy.testing import assert_allclose
  from scipy.linalg import toeplitz
label_desc: Use image node_id 1 for calling a global function with example usage: test_stationary_solve_1d() without return types