code: def tokenize(self, line, add_eos=False, add_double_eos=False):
      return self.tokenizer.encode(line)
  
imports: import contextlib
  import os
  from collections import Counter
  from collections import OrderedDict
  import torch
  from src.utils.distributed import sync_workers
label_desc: Use image node_id 6 for calling the OpenAIVocab obj's underlying member method code with example usage: obj.tokenize(line, add_eos, add_double_eos) and returns: self