code: def testBuild(self):
      wrapped = q_policy.QPolicy(
          self._time_step_spec, self._action_spec, q_network=DummyNet()
      )
      policy = boltzmann_policy.BoltzmannPolicy(
          wrapped, temperature=0.9
      )
  
      self.assertEqual(policy.time_step_spec, self._time_step_spec)
      self.assertEqual(policy.action_spec, self._action_spec)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import tensorflow
  from tf_agents.networks import network
  from tf_agents.policies import boltzmann_policy
  from tf_agents.policies import q_policy
  from tf_agents.specs import tensor_spec
  from tf_agents.trajectories import time_step
  from tf_agents.utils import test_utils
label_desc: Use image node_id 2 for calling the BoltzmannPolicyTest obj's underlying member method code with example usage: obj.testBuild() without return types