code: def close(self):
      if self.requests_session:
          return self.requests_session.close()
  
imports: import json
  from dataclasses import dataclass
  from typing import Callable, Optional
  import aiohttp
  import requests
  from structlog import get_logger
  from tenacity import retry, retry_if_exception, stop_after_attempt, wait_random_exponential
  from modelkit.core.model import AsyncModel, Model
  from modelkit.core.types import ItemType, ReturnType
label_desc: Use image node_id 4 for calling the DistantHTTPModel obj's underlying member method code with example usage: obj.close() and returns: self