code: def hessian_immersion_vec_test_data(self):
      return self.generate_vec_data()
  
imports: from .complex_manifold import ComplexManifoldTestData
  from .manifold import ManifoldTestData
  from .mixins import ProjectionMixinsTestData
label_desc: Use image node_id 6 for calling the ImmersedSetTestData obj's underlying member method code with example usage: obj.hessian_immersion_vec_test_data() and returns: self