code: def save_log_dir(args):
      log_dir = "./log/{}/{}".format(args.dataset, args.log_dir)
      os.makedirs(log_dir, exist_ok=True)
      return log_dir
  
file_path: dgl/examples/pytorch/graphsaint/utils.py
imports: import json
  import os
  from functools import namedtuple
  import dgl
  import numpy
  import scipy.sparse
  import torch
  from sklearn.metrics import f1_score
  from sklearn.preprocessing import StandardScaler
label_desc: Use image node_id 1 for calling a global function with example usage: save_log_dir(args) and returns: log_dir