code: def load_cached(self):
      path = os.path.join(self.root, self.cached_name)
      if os.path.exists(path):
          return load_graphs(path)
  
      if not os.path.exists(self.root):
          os.makedirs(self.root)
  
      g_list, labels = self.process()
      save_graphs(path, g_list, labels)
      return g_list, labels
  
imports: import argparse
  import datetime
  import os
  import sys
  import time
  import dgl
  import torch
  from dgl.data.utils import load_graphs, save_graphs
  from dgl.dataloading import GraphDataLoader
  from ogb.linkproppred import DglLinkPropPredDataset, Evaluator
  from torch.nn import BCEWithLogitsLoss
  from torch.utils.data import Dataset
  from tqdm import tqdm
  from models import *
  from utils import *
label_desc: Use image node_id 6 for calling the SEALOGBLDataset obj's underlying member method code with example usage: obj.load_cached() and returns: g_list,  labels, load_graphs