code: def testSpecificStddevValue(self):
      # TODO(b/135281612): Remove explicit float32 casting.
      cat_probs = np.float32([0.5, 0.5])
      component_means = np.float32([-10, 0.1])
      component_devs = np.float32([0.05, 2.33])
      ground_truth_stddev = 5.3120805
  
      mixture_dist = mixture.Mixture(
          cat=categorical.Categorical(probs=cat_probs),
          components=[
              normal.Normal(
                  loc=component_means[0], scale=component_devs[0]
              ),
              normal.Normal(
                  loc=component_means[1], scale=component_devs[1]
              ),
          ],
          validate_args=True,
      )
      mix_dev = mixture_dist.stddev()
      actual_stddev = self.evaluate(mix_dev)
      self.assertAllClose(actual_stddev, ground_truth_stddev)
  
imports: import contextlib
  import warnings
  import numpy
  from scipy import stats
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import categorical
  from tensorflow_probability.python.distributions import dirichlet
  from tensorflow_probability.python.distributions import distribution
  from tensorflow_probability.python.distributions import gamma
  from tensorflow_probability.python.distributions import half_normal
  from tensorflow_probability.python.distributions import independent
  from tensorflow_probability.python.distributions import mixture
  from tensorflow_probability.python.distributions import mvn_diag
  from tensorflow_probability.python.distributions import mvn_tril
  from tensorflow_probability.python.distributions import normal
  from tensorflow_probability.python.internal import hypothesis_testlib
  from tensorflow_probability.python.internal import reparameterization
  from tensorflow_probability.python.internal import tensorshape_util
  from tensorflow_probability.python.internal import test_util
label_desc: Use image node_id 10 for calling the MixtureTest obj's underlying member method code with example usage: obj.testSpecificStddevValue() without return types