code: def get_by_sent_id(self, sent_id):
      if sent_id in self.sent_id_sent_index_map:
          index = self.sent_id_sent_index_map[sent_id]
          return self.sentences[index]
      return None
  
imports: from os.path import dirname, join, exists
  from torch.utils.data import Dataset
  from underthesea import pos_tag
  from underthesea import dependency_parse
  from underthesea.utils.col_analyzer import UDAnalyzer
label_desc: Use image node_id 3 for calling the UDDataset obj's underlying member method code with example usage: obj.get_by_sent_id(sent_id) and returns: None, self