code: def __init__(self, *args, subset: str, sep_reagent: bool, **kwargs):
      super(_USPTOLoader, self).__init__(*args, **kwargs)
      self.subset = subset
      self.sep_reagent = sep_reagent
      self.name = "USPTO_" + subset
  
file_path: deepchem/deepchem/molnet/load_function/uspto_datasets.py
imports: import os
  import logging
  from typing import List, Optional, Tuple, Union
  import deepchem
  from deepchem.data import Dataset
  from deepchem.molnet.load_function.molnet_loader import TransformerGenerator, _MolnetLoader
label_desc: Use image node_id 1 to create a new _USPTOLoader object from inherited base classes: _MolnetLoader with example: obj = _USPTOLoader()