code: def test_2d_shape(self):
      x = [1, 2, 3, 4, 5]
      y = [4, 5, 6, 7, 8]
      tck = splrep(x, y)
      t = np.array([[1.0, 1.5, 2.0, 2.5], [3.0, 3.5, 4.0, 4.5]])
      z = splev(t, tck)
      z0 = splev(t[0], tck)
      z1 = splev(t[1], tck)
      assert_equal(z, np.vstack((z0, z1)))
  
imports: import itertools
  import os
  import numpy
  from numpy.testing import assert_equal, assert_allclose, assert_, assert_almost_equal, assert_array_almost_equal
  from pytest import raises
  import pytest
  from scipy._lib._testutils import check_free_memory
  from scipy.interpolate import RectBivariateSpline
  from scipy.interpolate._fitpack_py import splrep, splev, bisplrep, bisplev, sproot, splprep, splint, spalde, splder, splantider, insert, dblint
  from scipy.interpolate.dfitpack import regrid_smth
  from scipy.interpolate._fitpack2 import dfitpack_int
label_desc: Use image node_id 2 for calling the TestSplev obj's underlying member method code with example usage: obj.test_2d_shape() without return types