code: def test_track2_unit(deg):
      np = pytest.importorskip("numpy")
  
      lat1, lon1 = 0.0, 80.0
      lat2, lon2 = 0.0, 81.0
      lat0 = [0.0, 0.0, 0.0, 0.0]
      lon0 = [80.0, 80.33333, 80.66666, 81.0]
      if not deg:
          lat1, lon1, lat2, lon2 = np.radians((lat1, lon1, lat2, lon2))
          lat0 = np.radians(lat0)
          lon0 = np.radians(lon0)
  
      lats, lons = vincenty.track2(
          lat1, lon1, lat2, lon2, npts=4, deg=deg
      )
  
      assert lats == approx(lat0)
      assert lons == approx(lon0)
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_track2_unit(deg) without return types