code: def policy(self, obs):
      actions = self.actor(obs)
      return actions
  
file_path: PARL/benchmark/torch/mappo/simple_model.py
imports: import parl
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 2 for calling the SimpleModel obj's underlying member method code with example usage: obj.policy(obs) and returns: actions