code: def belongs_test_data(self):
      smoke_data = [
          dict(
              point=gs.array(
                  [[1.0, 2.0, 3.0], [2.0, 4.0, 5.0], [3.0, 5.0, 6.0]]
              ),
              expected=False,
          ),
          dict(
              point=gs.array(
                  [
                      [3.0 + 0j, 0j, 1j],
                      [0j, 4.0 + 0j, 0j],
                      [-0.5j, 0j, 6.0 + 0j],
                  ]
              ),
              expected=False,
          ),
      ]
      return self.generate_tests(smoke_data)
  
imports: import geomstats.backend
  from geomstats.test.data import TestData
  from .complex_matrices import ComplexMatricesMetricTestData
  from .complex_riemannian_metric import ComplexRiemannianMetricTestData
  from .pullback_metric import PullbackDiffeoMetricTestData
label_desc: Use image node_id 1 for calling the HPDMatrices3TestData obj's underlying member method code with example usage: obj.belongs_test_data() and returns: self