text: # Copyright 2018 DeepMind Technologies Limited. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Common environment wrapper classes."""
  
  from acme.wrappers.action_repeat import ActionRepeatWrapper
  from acme.wrappers.atari_wrapper import AtariWrapper
  from acme_pal.acme.wrappers.atari_ram_wrapper import AtariRAMWrapper # Hack to resolve path issue when run in colab
  from acme_pal.acme.wrappers.precision import PrecisionWrapper
  from acme.wrappers.base import EnvironmentWrapper
  from acme.wrappers.base import wrap_all
  from acme.wrappers.canonical_spec import CanonicalSpecWrapper
  from acme.wrappers.frame_stacking import FrameStackingWrapper
  from acme_pal.acme.wrappers.gym_wrapper import GymAtariRAMAdapter # Hack to resolve path issue when run in colab
  from acme.wrappers.gym_wrapper import GymAtariAdapter
  from acme.wrappers.gym_wrapper import GymWrapper
  from acme.wrappers.observation_action_reward import ObservationActionRewardWrapper
  from acme.wrappers.single_precision import SinglePrecisionWrapper
  from acme.wrappers.step_limit import StepLimitWrapper
  
  try:
    # pylint: disable=g-import-not-at-top
    from acme.wrappers.open_spiel_wrapper import OpenSpielWrapper
  except ImportError:
    pass
  