code: def compute_scale(
      self, data: torch.Tensor, observed_indicator: torch.Tensor
  ) -> torch.Tensor:
      pass
  
file_path: gluonts/src/gluonts/nursery/robust-mts-attack/pts/modules/scaler.py
imports: from abc import ABC, abstractmethod
  from typing import Tuple
  import torch
  import torch.nn
  from gluonts.core.component import validated
label_desc: Use image node_id 2 for calling the Scaler obj's underlying member method code with example usage: obj.compute_scale(data, observed_indicator) without return types