code: def testCreateAgent(self):
      cloning_net = get_dummy_net(
          self._action_spec, self._observation_spec
      )
      agent = behavioral_cloning_agent.BehavioralCloningAgent(
          self._time_step_spec,
          self._action_spec,
          cloning_network=cloning_net,
          optimizer=None,
      )
      self.assertIsNotNone(agent.policy)
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from absl.testing import parameterized
  import numpy
  import tensorflow
  import tensorflow_probability
  from tf_agents.agents import test_util
  from tf_agents.agents.behavioral_cloning import behavioral_cloning_agent
  from tf_agents.keras_layers import inner_reshape
  from tf_agents.networks import expand_dims_layer
  from tf_agents.networks import q_network
  from tf_agents.networks import q_rnn_network
  from tf_agents.networks import sequential
  from tf_agents.specs import tensor_spec
  from tf_agents.trajectories import time_step
  from tf_agents.trajectories import trajectory
  from tf_agents.utils import common
  from tf_agents.utils import test_utils
label_desc: Use image node_id 2 for calling the BehavioralCloningAgentTest obj's underlying member method code with example usage: obj.testCreateAgent() without return types