class_docstr: :class:`DecisionTreeDataset` is based on :class:`~recbole.data.dataset.dataset.Dataset`,
  and
  
  Attributes:
code: def _from_scratch(self):
      super()._from_scratch()
      self._convert_token_to_hash()
  
file_path: RecBole/recbole/data/dataset/decisiontree_dataset.py
imports: from recbole.data.dataset import Dataset
  from recbole.utils import FeatureType
label_desc: Use image node_id 4 for calling the DecisionTreeDataset obj's underlying member method code with example usage: obj._from_scratch() without return types