code: def hash_token(self, token: str):
      # Hash the string using SHA-256
      hashed_token = hashlib.sha256(token.encode()).hexdigest()
  
      return hashed_token
  
imports: from typing import Optional, List, Any, Literal, Union
  import os, subprocess, hashlib, importlib, asyncio, copy, json, aiohttp, httpx
  import litellm, backoff
  from litellm.proxy._types import UserAPIKeyAuth, DynamoDBArgs
  from litellm.caching import DualCache
  from litellm.proxy.hooks.parallel_request_limiter import MaxParallelRequestsHandler
  from litellm.proxy.hooks.max_budget_limiter import MaxBudgetLimiter
  from litellm.integrations.custom_logger import CustomLogger
  from litellm.proxy.db.base_client import CustomDB
  from fastapi import HTTPException, status
  import smtplib
  from email.mime.text import MIMEText
  from email.mime.multipart import MIMEMultipart
label_desc: Use image node_id 2 for calling the PrismaClient obj's underlying member method code with example usage: obj.hash_token(token) and returns: hashed_token