code: def inference(self, pred):
      return torch.argmax(pred, -1)
  
imports: import argparse
  import copy
  import csv
  import numpy
  import time
  import torch
  import torch.nn
  import torch.nn.functional
  from torch.utils.tensorboard import SummaryWriter
  import networkx
  import numpy
  import sklearn.metrics
  import torch_geometric.transforms
  import torch_geometric.nn
  from torch.utils.data import DataLoader
  from deepsnap.hetero_graph import HeteroGraph
  from deepsnap.dataset import GraphDataset
  from deepsnap.batch import Batch
label_desc: Use image node_id 5 for calling the Net obj's underlying member method code with example usage: obj.inference(pred) and returns: torch