code: def D_power_X(graph, X, power):
      """Y = D^{power}X"""
  
      degs = graph.ndata["deg"]
      norm = tc.pow(degs, power)
      Y = X * norm.view(X.size(0), 1)
      return Y
  
imports: import torch
  import torch.nn
  import torch.nn.functional
  from ....None import function
label_desc: Use image node_id 3 for calling a global function with example usage: D_power_X(graph, X, power) and returns: Y