code: def vectorize_graph_test_data(self):
      @_vectorize_graph((0, "points"))
      def vec_example(points):
          return points
  
      return self._get_data(vec_example)
  
imports: import random
  import geomstats.backend
  from geomstats.geometry.matrices import Matrices
  from geomstats.geometry.stratified.graph_space import ExhaustiveAligner, FAQAligner, GraphPoint, GraphSpace, GraphSpaceMetric, IDAligner, PointToGeodesicAligner, _GeodesicToPointAligner, _vectorize_graph, _vectorize_graph_to_points
  from geomstats.test.data import TestData
  from geomstats.test.test_case import np_backend
  from .point_set import PointMetricTestData, PointSetTestData, PointTestData
label_desc: Use image node_id 2 for calling the DecoratorsTestData obj's underlying member method code with example usage: obj.vectorize_graph_test_data() and returns: self, points