code: def forward(self, x):
      return self.upscaling(
          self.upscaling_shuffler(self.upscaling_conv(x))
      )
  
file_path: pytorch/test/onnx/model_defs/srresnet.py
imports: import math
  from torch import nn
  from torch.nn import init
label_desc: Use image node_id 2 for calling the UpscaleBlock obj's underlying member method code with example usage: obj.forward(x) and returns: self