code: def belongs_test_data(self):
      smoke_data = [
          dict(space_args=(3,), points=gs.ones((4, 4)), expected=False),
          dict(space_args=(3,), points=gs.ones((2, 2)), expected=True),
          dict(
              space_args=(2,),
              points=[
                  self._Point(gs.ones((n + 1, n + 1))) for n in range(3)
              ],
              expected=gs.array([True] * 2 + [False]),
          ),
      ]
  
      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 1 for calling the GraphSpaceTestData obj's underlying member method code with example usage: obj.belongs_test_data() and returns: self