Preprocess a standard OpenAI gym environment for training. `object env` a standard OpenAI gym environment, it has env.reset() and env.step() `int env_num` environment number `object device` torch.device('cpu'), torch.device('cuda') `bool if_print` print the informati
(self, env, env_num, device=torch.device('cuda'),
if_print=True, data_type=torch.float32)
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