Expose base EnvironmentWrapper.
"""Common environment wrapper classes."""
from acme.wrappers.atari_wrapper import AtariWrapper
+from acme.wrappers.base import EnvironmentWrapper
from acme.wrappers.base import wrap_all
from acme.wrappers.frame_stacking import FrameStackingWrapper
from acme.wrappers.gym_wrapper import GymAtariAdapter
