code: def num_tokens(self):
      return self.tokens.shape[-1] - self.truncate
  
imports: from model import ExLlama, ExLlamaCache, ExLlamaConfig
  from tokenizer import ExLlamaTokenizer
  from generator import ExLlamaGenerator
  import time
  import torch
  import os
  import json
  import uuid
label_desc: Use image node_id 1 for calling the Node obj's underlying member method code with example usage: obj.num_tokens() and returns: unknown