code: def test_from_single_2d_dcm():
      dcm = [[0, 0, 1], [1, 0, 0], [0, 1, 0]]
      expected_quat = [0.5, 0.5, 0.5, 0.5]
      assert_array_almost_equal(
          Rotation.from_dcm(dcm).as_quat(), expected_quat
      )
  
imports: from __future__ import division, print_function, absolute_import
  import pytest
  import numpy
  from numpy.testing import assert_equal, assert_array_almost_equal
  from numpy.testing import assert_allclose
  from scipy.spatial.transform import Rotation, Slerp
  from scipy.stats import special_ortho_group
  from itertools import permutations
label_desc: Use image node_id 12 for calling a global function with example usage: test_from_single_2d_dcm() without return types