code: def forward(self, x):
      x1 = self.act(self.Conv1(x))
      x2 = self.act(self.Conv4(x))
      x3 = self.act(self.Conv8(x))
      x = torch.cat([x1, x2, x3], dim=1)
      x = self.act(self.Conv_f3(x))
      return self.act(self.bn1(self.Conv_f1(x)))
  
imports: import torch
  import torch.nn
label_desc: Use image node_id 2 for calling the Fire_Down obj's underlying member method code with example usage: obj.forward(x) and returns: self