code: def forward(self, x):
      a = self.u2(self.u1(self.l(x)))
      b = self.p
      return torch.mm(a, b)
  
imports: from typing import Tuple
  import torch
  import torch.nn
label_desc: Use image node_id 2 for calling the CompositeParamModel obj's underlying member method code with example usage: obj.forward(x) and returns: torch