code: def testRWMIsCalibrated(self):
      rwm = random_walk_metropolis.RandomWalkMetropolis(
          target_log_prob_fn=lambda x: -tf.square(x) / 2.0,
      )
      self.assertTrue(rwm.is_calibrated)
  
imports: import numpy
  import tensorflow.compat.v1
  import tensorflow.compat.v2
  from tensorflow_probability.python.distributions import cauchy
  from tensorflow_probability.python.distributions import mvn_tril
  from tensorflow_probability.python.distributions import normal
  from tensorflow_probability.python.internal import distribute_lib
  from tensorflow_probability.python.internal import distribute_test_lib
  from tensorflow_probability.python.internal import samplers
  from tensorflow_probability.python.internal import test_util
  from tensorflow_probability.python.mcmc import random_walk_metropolis
  from tensorflow_probability.python.mcmc import sample
label_desc: Use image node_id 6 for calling the RWMTest obj's underlying member method code with example usage: obj.testRWMIsCalibrated() without return types