code: def test_gaussian_sum_with_noise(self):
      record1, record2 = 2.71828, 3.14159
      stddev = 1.0
  
      query = gaussian_query.GaussianSumQuery(
          l2_norm_clip=5.0, stddev=stddev
      )
  
      noised_sums = []
      for _ in range(1000):
          query_result, _ = test_utils.run_query(
              query, [record1, record2]
          )
          noised_sums.append(query_result)
  
      result_stddev = np.std(noised_sums)
      self.assertNear(result_stddev, stddev, 0.1)
  
file_path: privacy/tensorflow_privacy/privacy/dp_query/gaussian_query_test.py
imports: from absl.testing import parameterized
  import numpy
  import tensorflow
  from tensorflow_privacy.privacy.dp_query import gaussian_query
  from tensorflow_privacy.privacy.dp_query import test_utils
label_desc: Use image node_id 4 for calling the GaussianQueryTest obj's underlying member method code with example usage: obj.test_gaussian_sum_with_noise() without return types