code: def test_from_1d_single_rotvec():
      rotvec = [1, 0, 0]
      expected_quat = np.array([0.4794255, 0, 0, 0.8775826])
      result = Rotation.from_rotvec(rotvec)
      assert_array_almost_equal(result.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 17 for calling a global function with example usage: test_from_1d_single_rotvec() without return types