class_docstr: Class to represent some dataset: train, validation, test
docstr: Return batch of required size of data, labels
docstr_tok: ["Return","batch","of","required","size","of","data",",","labels"]
code: def next_batch(self, batch_size):
      """Return batch of required size of data, labels"""
      raise NotImplementedError
  
file_path: auptimizer/Examples/cai_eas/eas/data_providers/base_provider.py
imports: import numpy
label_desc: Use image node_id 2 for calling the DataSet obj's underlying member method code with example usage: obj.next_batch(batch_size) without return types