code: def token_left(
      input: Union[str, List, Dict], model="gpt-3.5-turbo-0613"
  ) -> int:
      """Count number of tokens left for an OpenAI model.
  
      Args:
          input: (str, list, dict): Input to the model.
          model: (str): Model name.
  
      Returns:
          int: Number of tokens left that the model can use for completion.
      """
      return get_max_token_limit(model) - count_token(
          input, model=model
      )
  
file_path: autogen/autogen/token_count_utils.py
imports: from typing import List, Union, Dict
  import logging
  import json
  import tiktoken
  import re
label_desc: Use image node_id 3 for calling a global function with example usage: token_left(input, model) and returns: unknown