code: def test_regularize(self, point, expected, atol):
      regularized_point = self.space.regularize(point)
      self.assertAllClose(regularized_point, expected, atol=atol)
  
imports: import pytest
  import geomstats.backend
  from geomstats.test.random import RandomDataGenerator
  from geomstats.test.test_case import TestCase
  from geomstats.test.vectorization import generate_vectorization_data
label_desc: Use image node_id 11 for calling the _ManifoldTestCaseMixins obj's underlying member method code with example usage: obj.test_regularize(point, expected, atol) without return types