code: def forward(self, seq):
      ret = self.fc(seq)
      return ret
  
imports: import copy
  import torch
  import numpy
  import torch.nn
  from torch_geometric.loader import DataLoader
  from sklearn import preprocessing
label_desc: Use image node_id 3 for calling the LogReg obj's underlying member method code with example usage: obj.forward(seq) and returns: ret