code: def forward(self, A):
      h = self.embed_layer()
      for layer in self.layers:
          h = layer(A, h)
      return h
  
imports: import argparse
  import time
  import dgl
  import dgl.sparse
  import numpy
  import torch
  import torch.nn
  import torch.nn.functional
  from dgl.data.rdf import AIFBDataset, AMDataset, BGSDataset, MUTAGDataset
label_desc: Use image node_id 2 for calling the EntityClassify obj's underlying member method code with example usage: obj.forward(A) and returns: h