code: def forward(self, x):
      out = self._sn_conv_transpose(x)
      if self._norm_layer:
          out = self._norm_layer(out)
      if self._act:
          out = self._act(out)
      return out
  
imports: import paddle
  import paddle.nn
  from arch.spectral_norm import spectral_norm
label_desc: Use image node_id 2 for calling the SNConvTranspose obj's underlying member method code with example usage: obj.forward(x) and returns: out