code: def forward(self, x, edge_index):
      messages = self.message_aggr(x, edge_index)
      new_x = self.node_update(x, messages)
      return new_x
  
file_path: DIG/dig/auggraph/method/GraphAug/aug/aug_encoder.py
imports: import torch
  from torch.nn import Linear, Sequential, ReLU, BatchNorm1d
  from torch_geometric.nn import GINConv
  from torch_scatter import scatter
  from ..constants import *
label_desc: Use image node_id 6 for calling the GEMBConv obj's underlying member method code with example usage: obj.forward(x, edge_index) and returns: new_x