code: def forward(self, input, **kwargs):
      output = self.generator(input)
      return output
  
file_path: BigDL/python/nano/client-application/VideoStylization/litmodels.py
imports: from typing import OrderedDict
  import torch
  import torch.nn
  import torch.nn.functional
  import pytorch_lightning
  from feature_model import FeaturesNet
  from original_models import Discriminator, Generator
label_desc: Use image node_id 2 for calling the LitModel obj's underlying member method code with example usage: obj.forward(input) and returns: output