class_docstr: HDD dataset.
class_docstr_tok: ["HDD","dataset","."]
docstr: Path to dataset.
docstr_tok: ["Path","to","dataset","."]
code: def path(self):
      """Path to dataset."""
      return self._path
  
imports: import os
  from abc import ABC, abstractmethod
  from warnings import warn
  import numpy
  from joblib import dump, load
label_desc: Use image node_id 2 for calling the HDDBaseDataset obj's underlying member method code with example usage: obj.path() and returns: self