class_docstr: Abstract class for cifar readers
class_docstr_tok: ["Abstract","class","for","cifar","readers"]
code: def save_path(self):
      if self._save_path is None:
          self._save_path = os.path.join(
              tempfile.gettempdir(), "cifar%d" % self.n_classes
          )
      return self._save_path
  
imports: import tempfile
  import os
  import pickle
  import random
  import numpy
  from ..data_providers.base_provider import ImagesDataSet, DataProvider
  from ..data_providers.downloader import download_data_url
label_desc: Use image node_id 2 for calling the CifarDataProvider obj's underlying member method code with example usage: obj.save_path() and returns: self