code: def test_norm_jacobian_preset(self):
      x_init = test_helpers.generate_preset_test_dual_quaternions()
      self.assert_jacobian_is_correct_fn(dual_quaternion.norm, [x_init])
  
imports: from absl.testing import flagsaver
  from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_graphics.geometry.transformation import dual_quaternion
  from tensorflow_graphics.geometry.transformation import quaternion
  from tensorflow_graphics.geometry.transformation import rotation_matrix_3d
  from tensorflow_graphics.geometry.transformation.tests import test_helpers
  from tensorflow_graphics.util import test_case
label_desc: Use image node_id 17 for calling the DualQuaternionTest obj's underlying member method code with example usage: obj.test_norm_jacobian_preset() without return types