class_docstr: A wrapper that applies exponential moving averaging to action outputs.
code: def _variables(self):
      return self._wrapped_policy.variables()
  
file_path: agents/tf_agents/policies/temporal_action_smoothing.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from typing import Optional, Text
  import tensorflow
  from tf_agents.policies import tf_policy
  from tf_agents.trajectories import policy_step
label_desc: Use image node_id 3 for calling the TemporalActionSmoothing obj's underlying member method code with example usage: obj._variables() and returns: self