code: def get_users(self):
      return list(self.user_dict.keys())
  
imports: import os, json, time
  import litellm
  from litellm.utils import ModelResponse
  import requests, threading
  from typing import Optional, Union, Literal
label_desc: Use image node_id 11 for calling the BudgetManager obj's underlying member method code with example usage: obj.get_users() and returns: list