code: def __init__(self):
      self.index2label = {}
      self.label2index = {}
      self.vocab_size = 0
  
file_path: underthesea/underthesea/datasets/uit_absa_hotel/uit_absa_hotel.py
imports: from os.path import join
  import re
  from underthesea.data_fetcher import DataFetcher
  from underthesea.file_utils import DATASETS_FOLDER
label_desc: Use image node_id 1 to create a new LabelEncoder object  with example: obj = LabelEncoder()