code: def set_to_networkx_test_data(self):
      smoke_data = [
          dict(
              space=self._PointSet(2),
              points=Matrices(2, 2).random_point(),
          ),
      ]
  
      return self.generate_tests(smoke_data)
  
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 3 for calling the GraphSpaceTestData obj's underlying member method code with example usage: obj.set_to_networkx_test_data() and returns: self