code: def __init__(self, datapath):
      self.data = read_dataset(datapath)
      self.n_samples = len(self.data)
      self.reset()
  
imports: import re
  import codecs
  import random
  from collections import Counter
label_desc: Use image node_id 1 to create a new DataLoader object from inherited base classes: object with example: obj = DataLoader(datapath)