docstr: Return next batch of records (ABCRecordBatch instances).
          
docstr_tok: ["Return","next","batch","of","records","(","ABCRecordBatch","instances",")","."]
code: def next_batch(self):
      """Return next batch of records (ABCRecordBatch instances)."""
  
imports: from __future__ import absolute_import
  import abc
label_desc: Use image node_id 3 for calling the ABCRecords obj's underlying member method code with example usage: obj.next_batch() without return types