code: def init_hidden(self):
      # make hidden states on same device as model
      return self.fc1.weight.new(1, self.rnn_hidden_dim).zero_()
  
file_path: PARL/benchmark/torch/qmix/rnn_model.py
imports: import torch.nn
  import torch.nn.functional
  import parl
label_desc: Use image node_id 2 for calling the RNNModel obj's underlying member method code with example usage: obj.init_hidden() and returns: self