code: def test_kinematic_expected_output():
      """Test expected output in docstring example."""
      traj3d = pd.DataFrame(columns=["x", "y", "z"])
      traj3d["x"] = pd.Series(np.sin(np.arange(200) / 100))
      traj3d["y"] = pd.Series(np.cos(np.arange(200) / 100))
      traj3d["z"] = pd.Series(np.arange(200) / 100)
  
      t = KinematicFeatures()
      Xt = t.fit_transform(traj3d)
  
      assert np.allclose(np.sqrt(2) / 100, Xt["v_abs"][1:])
      assert np.allclose(1e-4, Xt["a_abs"][2:])
      assert np.allclose(0.5, Xt["curv"][2:], atol=1e-5)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_kinematic_expected_output() without return types