code: def test_variance_repeated_is_zero(self, n_samples, atol):
      base_point = point = self.data_generator.random_point(n_points=1)
      points = repeat_point(point, n_samples)
  
      self.test_variance(points, base_point, 0.0, atol)
  
imports: import pytest
  import geomstats.backend
  from geomstats.geometry.discrete_curves import SRVTranslationMetric
  from geomstats.learning.frechet_mean import GradientDescent, variance
  from geomstats.test.random import RandomDataGenerator
  from geomstats.test.test_case import TestCase
  from geomstats.test_cases.learning._base import BaseEstimatorTestCase, MeanEstimatorMixinsTestCase
  from geomstats.vectorization import repeat_point
label_desc: Use image node_id 3 for calling the VarianceTestCase obj's underlying member method code with example usage: obj.test_variance_repeated_is_zero(n_samples, atol) without return types