code: def torch_nn_flatten(
      self: torch.nn.Flatten, input: torch.Tensor
  ) -> Tuple[int, int]:
      flops = 0
      macs = 0
      return flops, macs
  
label_desc: Use image node_id 1 for calling a global function with example usage: torch_nn_flatten(input) and returns: flops,  macs