code: def forward(self, x):
      pad1 = self._pad1.forward(x)
      sn_conv1 = self._sn_conv1.forward(pad1)
      pad2 = self._pad2.forward(sn_conv1)
      sn_conv2 = self._sn_conv2.forward(pad2)
      return sn_conv2 + x
  
imports: import paddle
  import paddle.nn
  from arch.spectral_norm import spectral_norm
label_desc: Use image node_id 2 for calling the ResBlock obj's underlying member method code with example usage: obj.forward(x) and returns: unknown