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"""Abstract base class for environment randomizer."""
import abc
class EnvRandomizerBase(object):
"""Abstract base class for environment randomizer.
An EnvRandomizer is called in environment.reset(). It will
randomize physical parameters of the objects in the simulation.
The physical parameters will be fixed for that episode and be
randomized again in the next environment.reset().
"""
__metaclass__ = abc.ABCMeta
@abc.abstractmethod
def randomize_env(self, env):
"""Randomize the simulated_objects in the environment.
Args:
env: The environment to be randomized.
"""
pass
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