code: def reshuffle(self):
      data = [y for x in self.data for y in x]
      random.shuffle(data)
      self.data = self.chunk_batches(data)
  
imports: import random
  import logging
  import torch
  from stanza.models.common.bert_embedding import filter_data
  from stanza.models.common.data import map_to_ids, get_long_tensor, sort_all
  from stanza.models.common.vocab import PAD_ID, VOCAB_PREFIX
  from stanza.models.pos.vocab import CharVocab, CompositeVocab, WordVocab
  from stanza.models.ner.vocab import MultiVocab
  from stanza.models.common.doc import *
  from stanza.models.ner.utils import process_tags, normalize_empty_tags
label_desc: Use image node_id 9 for calling the DataLoader obj's underlying member method code with example usage: obj.reshuffle() without return types