code: def vector_from_upper_triangular_matrix_after_upper_triangular_matrix_from_vector_test_data(
      self,
  ):
      return self.generate_random_data()
  
file_path: geomstats/tests/tests_geomstats/test_geometry/data/heisenberg.py
imports: import geomstats.backend
  from geomstats.test.data import TestData
  from .base import VectorSpaceTestData
  from .lie_group import LieGroupTestData
label_desc: Use image node_id 3 for calling the HeisenbergVectorsTestData obj's underlying member method code with example usage: obj.vector_from_upper_triangular_matrix_after_upper_triangular_matrix_from_vector_test_data() and returns: self