code: def __init__(self):
      super(Net, self).__init__()
      self.layer1 = GCNLayer(1433, 16)
      self.layer2 = GCNLayer(16, 7)
  
file_path: dgl/tutorials/models/1_gnn/1_gcn.py
imports: import os
  import dgl
  import dgl.function
  import torch
  import torch.nn
  import torch.nn.functional
  from dgl import DGLGraph
  from dgl.data import CoraGraphDataset
  import time
  import numpy
label_desc: Use image node_id 1 to create a new Net object from inherited base classes: nn with example: obj = Net()