code: def __init__(self, g, user_ntype, item_ntype, textset):
      self._g = g
      self._user_ntype = user_ntype
      self._item_ntype = item_ntype
      self._textset = textset
  
imports: import inspect
  import json
  import os
  import pickle
  import shutil
  import time
  import zipfile
  from functools import partial, reduce, wraps
  from timeit import default_timer
  import dgl
  import numpy
  import pandas
  import requests
  import torch
  from ogb.nodeproppred import DglNodePropPredDataset
  import traceback
  from _thread import start_new_thread
  import torch.multiprocessing
label_desc: Use image node_id 1 to create a new PinsageDataset object  with example: obj = PinsageDataset(g, user_ntype, item_ntype, textset)