code: def _load_train_examples(self):
      self.train_path = os.path.join(self.base_path, self.train_file)
      self.train_examples = self._read_file(
          self.train_path, phase="train"
      )
  
imports: import os
  from paddlehub.utils.log import logger
label_desc: Use image node_id 11 for calling the BaseDataset obj's underlying member method code with example usage: obj._load_train_examples() without return types