code: def test_composite_kernel_results(self):
      kr = normal.Normal(0.0, 1.0)
      cov_red = covariance_reducer.CovarianceReducer()
      state = cov_red.initialize(tf.zeros((2,)), kr)
      state = cov_red.one_step(tf.ones((2,)), state, kr)
      cov_red.finalize(state)
  
file_path: probability/tensorflow_probability/python/experimental/mcmc/covariance_reducer_test.py
imports: import collections
  import numpy
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import normal
  from tensorflow_probability.python.experimental.mcmc import covariance_reducer
  from tensorflow_probability.python.experimental.mcmc.internal import test_fixtures
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 7 for calling the CovarianceReducersTest obj's underlying member method code with example usage: obj.test_composite_kernel_results() without return types