code: def _load_test_examples(self):
      self.test_path = os.path.join(self.base_path, self.test_file)
      self.test_examples = self._read_file(self.test_path, phase="test")
  
imports: import os
  from paddlehub.utils.log import logger
label_desc: Use image node_id 13 for calling the BaseDataset obj's underlying member method code with example usage: obj._load_test_examples() without return types