code: def __len__(self):
      return len(self.token_ids)
  
imports: from functools import total_ordering
  import torch
  from abc import ABC, abstractmethod
  from dataclasses import dataclass
  from typing import List, Optional
  from transformers import PreTrainedTokenizerBase
  from text_generation_server.pb import generate_pb2
  from text_generation_server.pb.generate_pb2 import FinishReason
label_desc: Use image node_id 2 for calling the Tokens obj's underlying member method code with example usage: obj.__len__() and returns: len