code: def print_log(*x, sep="\n", end="\n", mode="a"):
      print(*x, sep=sep, end=end)
      with open(log_file, mode=mode) as f:
          print(*x, sep=sep, end=end, file=f)
  
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 7 for calling a global function with example usage: print_log() without return types