code: def worker_thread_fn(host_id, n_jobs, timeout):
      mw = MongoWorker(
          mj=TempMongo.mongo_jobs("foodb"),
          logfilename=None,
          workdir="mongoexp_test_dir",
      )
      while n_jobs:
          mw.run_one(host_id, timeout, erase_created_workdir=True)
          print("worker: %s ran job" % str(host_id))
          n_jobs -= 1
  
imports: import pickle
  import os
  import signal
  import subprocess
  import sys
  import traceback
  import threading
  import time
  import unittest
  import numpy
  import nose
  import nose.plugins.skip
  from hyperopt.base import JOB_STATE_DONE, STATUS_OK
  from hyperopt.mongoexp import parse_url
  from hyperopt.mongoexp import MongoTrials
  from hyperopt.mongoexp import MongoWorker
  from hyperopt.mongoexp import ReserveTimeout
  from hyperopt.mongoexp import as_mongo_str
  from hyperopt.mongoexp import main_worker_helper
  from hyperopt.mongoexp import MongoJobs
  from hyperopt.fmin import fmin
  from hyperopt import hp, rand
  import hyperopt.tests.test_base
  from hyperopt.tests.unit.test_domains import gauss_wave2
label_desc: Use image node_id 1 for calling the TestExperimentWithThreads obj's underlying member method code with example usage: obj.worker_thread_fn(host_id, n_jobs, timeout) without return types