code: def regularize_belongs_test_data(self):
      return self.generate_random_data()
  
file_path: geomstats/tests/tests_geomstats/test_geometry/data/manifold.py
imports: from geomstats.test.data import TestData
label_desc: Use image node_id 8 for calling the _ManifoldMixinsTestData obj's underlying member method code with example usage: obj.regularize_belongs_test_data() and returns: self