code: def maybe_fail(self, method, path, headers):
      if self.should_fail():
          raise aiohttp.ClientResponseError(
              status=503,
              message="Service Unavailable from FailureInjectingClientSession",
              request_info=aiohttp.RequestInfo(
                  url=path,
                  method=method,
                  headers=headers,
                  real_url=path,
              ),
              history=(),
          )
  
imports: import aiohttp
  from hailtop import httpx
label_desc: Use image node_id 2 for calling the FailureInjectingClientSession obj's underlying member method code with example usage: obj.maybe_fail(method, path, headers) without return types