code: def permute_test_data(self):
      space = self._PointSet(2)
      graph = gs.array([[0.0, 1.0], [2.0, 3.0]])
  
      smoke_data = [
          dict(
              space=space,
              graph=graph,
              permutation=gs.array([0, 1]),
              expected=graph,
          ),
      ]
      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 4 for calling the GraphSpaceTestData obj's underlying member method code with example usage: obj.permute_test_data() and returns: self