class_docstr: An output filter is a module that filters the output from an agent to the environment.
class_docstr_tok: ["An","output","filter","is","a","module","that","filters","the","output","from","an","agent","to","the","environment","."]
docstr: Currently not in use for OutputFilter.
  :param checkpoint_dir: the directory from which to restore
  :param checkpoint_prefix: the checkpoint prefix to look for
  :return: None
code: def restore_state_from_checkpoint(
      self, checkpoint_dir, checkpoint_prefix
  ) -> None:
      """
      Currently not in use for OutputFilter.
      :param checkpoint_dir: the directory from which to restore
      :param checkpoint_prefix: the checkpoint prefix to look for
      :return: None
      """
      pass
  
imports: import copy
  import os
  from collections import OrderedDict
  from copy import deepcopy
  from typing import Dict, Union, List
  from rl_coach.core_types import EnvResponse, ActionInfo, Transition
  from rl_coach.spaces import ActionSpace, RewardSpace, ObservationSpace
  from rl_coach.utils import force_list
label_desc: Use image node_id 14 for calling the OutputFilter obj's underlying member method code with example usage: obj.restore_state_from_checkpoint(checkpoint_dir, checkpoint_prefix) without return types