code: def forward(self, x):
      if torch.isnan(torch.exp(self.weight)).any():
          print(self.weight)
          raise RuntimeError("Rescale factor has NaN entries")
  
      x = torch.exp(self.weight) * x
      return x
  
imports: import numpy
  import torch
  import torch.nn
label_desc: Use image node_id 2 for calling the Rescale obj's underlying member method code with example usage: obj.forward(x) and returns: x