code: def belongs_test_data(self):
      smoke_data = [
          dict(
              point=gs.array(
                  [
                      [-1.6473486, -1.18240309],
                      [0.1944016, 0.18169231],
                      [-1.13933855, -0.64971248],
                  ]
              ),
              expected=True,
          ),
          dict(
              point=gs.array([[1.0, -1.0], [1.0, -1.0], [0.0, 0.0]]),
              expected=False,
          ),
      ]
      return self.generate_tests(smoke_data)
  
imports: import geomstats.backend
  from geomstats.test.data import TestData
label_desc: Use image node_id 1 for calling the FullRankMatrices32TestData obj's underlying member method code with example usage: obj.belongs_test_data() and returns: self