code: def forward(self, x):
      x1 = self.shortcut(x)
      x2 = self.resstack(x)
      return x1 + x2
  
file_path: TTS/TTS/vocoder/layers/hifigan.py
imports: from torch import nn
  from torch.nn.utils.parametrize import remove_parametrizations
label_desc: Use image node_id 2 for calling the ResStack obj's underlying member method code with example usage: obj.forward(x) and returns: unknown