code: def forward(self, obs, h0):
      x = F.relu(self.fc1(obs))
      h1 = h0.reshape(-1, self.hid_size)
      h2 = self.rnn(x, h1)
      policy = self.fc2(h2)
      return policy, h2
  
imports: import torch.nn
  import torch.nn.functional
  import numpy
  import parl
label_desc: Use image node_id 3 for calling the ActorModel obj's underlying member method code with example usage: obj.forward(obs, h0) and returns: policy,  h2