code: def normalized_AX(graph, X):
      """Y = D^{-1/2}AD^{-1/2}X"""
  
      Y = D_power_X(graph, X, -0.5)  # Y = D^{-1/2}X
      Y = AX(graph, Y)  # Y = AD^{-1/2}X
      Y = D_power_X(graph, Y, -0.5)  # Y = D^{-1/2}AD^{-1/2}X
  
      return Y
  
imports: import torch
  import torch.nn
  import torch.nn.functional
  from ....None import function
label_desc: Use image node_id 1 for calling a global function with example usage: normalized_AX(graph, X) and returns: Y