code: def call(self, x):
      for block, shortcut in zip(self.blocks, self.shortcuts):
          res = shortcut(x)
          for layer in block:
              x = layer(x)
          x += res
      return x
  
file_path: TTS/TTS/vocoder/tf/layers/melgan.py
imports: import tensorflow
label_desc: Use image node_id 2 for calling the ResidualStack obj's underlying member method code with example usage: obj.call(x) and returns: x