code: def get_idx_split(self):
      split_dict = replace_numpy_with_torchtensor(
          torch.load(osp.join(self.root, "split_dict.pt"))
      )
      return split_dict
  
file_path: ogb/ogb/lsc/pcqm4m_pyg.py
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 tqdm.auto import tqdm
  import torch
  from torch_geometric.data import InMemoryDataset
  from torch_geometric.data import Data
label_desc: Use image node_id 6 for calling the PygPCQM4MDataset obj's underlying member method code with example usage: obj.get_idx_split() and returns: split_dict