class_docstr: Base class inheritted by all data classes.
      
class_docstr_tok: ["Base","class","inheritted","by","all","data","classes","."]
docstr: The batch size.
          
docstr_tok: ["The","batch","size","."]
code: def batch_size(self):
      """The batch size."""
      return self._hparams.batch_size
  
file_path: texar/texar/tf/data/data/data_base.py
imports: import tensorflow
  from texar.tf.hyperparams import HParams
  from texar.tf.data.data import dataset_utils
  from texar.tf.data.data_utils import count_file_lines
label_desc: Use image node_id 6 for calling the DataBase obj's underlying member method code with example usage: obj.batch_size() and returns: self