docstr: Checks that blend returns the expected value.
docstr_tok: ["Checks","that","blend","returns","the","expected","value","."]
code: def test_blend_preset(self):
      """Checks that blend returns the expected value."""
      (
          x_points_init,
          x_weights_init,
          x_rotations_init,
          x_translations_init,
          y_blended_points_init,
      ) = test_helpers.generate_preset_test_lbs_blend()
  
      x_points = tf.convert_to_tensor(value=x_points_init)
      x_weights = tf.convert_to_tensor(value=x_weights_init)
      x_rotations = tf.convert_to_tensor(value=x_rotations_init)
      x_translations = tf.convert_to_tensor(value=x_translations_init)
      y_blended_points = tf.convert_to_tensor(
          value=y_blended_points_init
      )
  
      y = linear_blend_skinning.blend(
          x_points, x_weights, x_rotations, x_translations
      )
  
      self.assertAllClose(y_blended_points, y)
  
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 4 for calling the LinearBlendSkinningTest obj's underlying member method code with example usage: obj.test_blend_preset() without return types