from stable_baselines3.common.policies import register_policy from sb3_contrib.common.maskable.policies import ( MaskableActorCriticCnnPolicy, MaskableActorCriticPolicy, MaskableMultiInputActorCriticPolicy, ) MlpPolicy = MaskableActorCriticPolicy CnnPolicy = MaskableActorCriticCnnPolicy MultiInputPolicy = MaskableMultiInputActorCriticPolicy register_policy("MlpPolicy", MaskableActorCriticPolicy) register_policy("CnnPolicy", MaskableActorCriticCnnPolicy) register_policy("MultiInputPolicy", MaskableMultiInputActorCriticPolicy)