code: def forward(self, obs):
      x = F.relu(self.l1(obs))
      x = F.relu(self.l2(x))
      action = paddle.tanh(self.l3(x))
      return action
  
imports: import parl
  import paddle
  import paddle.nn
  import paddle.nn.functional
label_desc: Use image node_id 2 for calling the Actor obj's underlying member method code with example usage: obj.forward(obs) and returns: action