code: def __init__(self, batch_size, vocab_size, seq_length):
      self.batch_size = batch_size
      self.vocab_size = vocab_size
      self.seq_length = seq_length
      self.step = 0
  
imports: import torch
label_desc: Use image node_id 1 to create a new DummyDataloader object  with example: obj = DummyDataloader(batch_size, vocab_size, seq_length)