code: def request(self, method, url, *args, **kwargs):
      self.maybe_fail(method, url, kwargs.get("headers", {}))
      return self.real_session.request(method, url, *args, **kwargs)
  
imports: import aiohttp
  from hailtop import httpx
label_desc: Use image node_id 3 for calling the FailureInjectingClientSession obj's underlying member method code with example usage: obj.request(method, url) and returns: self