class_docstr: A SAC Agent.
class_docstr_tok: ["A","SAC","Agent","."]
docstr: Returns an op to initialize the agent.
  
  Copies weights from the Q networks to the target Q network.
docstr_tok: ["Returns","an","op","to","initialize","the","agent",".","Copies","weights","from","the","Q","networks","to","the","target","Q","network","."]
code: def _initialize(self):
      """Returns an op to initialize the agent.
  
      Copies weights from the Q networks to the target Q network.
      """
      common.soft_variables_update(
          self._critic_network_1.variables,
          self._target_critic_network_1.variables,
          tau=1.0,
      )
      common.soft_variables_update(
          self._critic_network_2.variables,
          self._target_critic_network_2.variables,
          tau=1.0,
      )
  
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import collections
  from typing import Callable, Optional, Text
  import gin
  import numpy
  from six.moves import zip
  import tensorflow
  import tensorflow_probability
  from tf_agents.agents import data_converter
  from tf_agents.agents import tf_agent
  from tf_agents.networks import network
  from tf_agents.policies import actor_policy
  from tf_agents.policies import tf_policy
  from tf_agents.trajectories import time_step
  from tf_agents.typing import types
  from tf_agents.utils import common
  from tf_agents.utils import eager_utils
  from tf_agents.utils import nest_utils
  from tf_agents.utils import object_identity
label_desc: Use image node_id 5 for calling the SacAgent obj's underlying member method code with example usage: obj._initialize() without return types