code: def __init__(self, mean, std):
      self.mean = mean
      self.std = std
  
file_path: dgl/examples/pytorch/dtgrnn/utils.py
imports: import dgl
  import numpy
  import scipy.sparse
  import torch
  import torch.nn
label_desc: Use image node_id 1 to create a new NormalizationLayer object from inherited base classes: nn with example: obj = NormalizationLayer(mean, std)