code: def get_idx_split(self):
      split_dict = replace_numpy_with_torchtensor(
          torch.load(osp.join(self.folder, "split_dict.pt"))
      )
      return split_dict
  
imports: import os
  import os.path
  import shutil
  from ogb.utils import smiles2graph
  from ogb.utils.torch_util import replace_numpy_with_torchtensor
  from ogb.utils.url import decide_download, download_url, extract_zip
  import pandas
  import numpy
  from dgl.data.utils import load_graphs, save_graphs, Subset
  import dgl
  from tqdm.auto import tqdm
  import torch
label_desc: Use image node_id 4 for calling the DglPCQM4Mv2Dataset obj's underlying member method code with example usage: obj.get_idx_split() and returns: split_dict