class_docstr: This is just the gym environment, without extra functionality
class_docstr_tok: ["This","is","just","the","gym","environment",",","without","extra","functionality"]
code: def seed(self, seed: int) -> None:
      random.seed(seed)
      torch.manual_seed(seed)
  
imports: import random
  import gym
  import numpy
  import reagent.core.types
  import torch
  from reagent.core.dataclasses import dataclass
  from reagent.core.parameters import NormalizationData, NormalizationKey
  from reagent.gym.envs.env_wrapper import EnvWrapper
  from reagent.gym.normalizers import only_continuous_normalizer
label_desc: Use image node_id 3 for calling the ChangingArmsEnv obj's underlying member method code with example usage: obj.seed(seed) without return types