docstr: Test the Jacobian of the blend function.
docstr_tok: ["Test","the","Jacobian","of","the","blend","function","."]
code: def test_blend_jacobian_random(self):
      """Test the Jacobian of the blend function."""
      (
          x_points_init,
          x_weights_init,
          x_rotations_init,
          x_translations_init,
      ) = test_helpers.generate_random_test_lbs_blend()
  
      self.assert_jacobian_is_correct_fn(
          linear_blend_skinning.blend,
          [
              x_points_init,
              x_weights_init,
              x_rotations_init,
              x_translations_init,
          ],
      )
  
file_path: graphics/tensorflow_graphics/geometry/transformation/tests/linear_blend_skinning_test.py
imports: from absl.testing import flagsaver
  from absl.testing import parameterized
  import tensorflow
  from tensorflow_graphics.geometry.transformation import linear_blend_skinning
  from tensorflow_graphics.geometry.transformation.tests import test_helpers
  from tensorflow_graphics.util import test_case
label_desc: Use image node_id 3 for calling the LinearBlendSkinningTest obj's underlying member method code with example usage: obj.test_blend_jacobian_random() without return types