code: def batches(self, batch_size=25):
      while self.idx < self.n_samples:
          yield self.data[self.idx : self.idx + batch_size]
          self.idx += batch_size
  
imports: import re
  import codecs
  import random
  from collections import Counter
label_desc: Use image node_id 4 for calling the DataLoader obj's underlying member method code with example usage: obj.batches(batch_size) without return types