old_contents: # -*- coding: utf-8 -
  #
  # This file is part of gunicorn released under the MIT license.
  # See the NOTICE for more information.
  
  import sys
  
  # supported gunicorn workers.
  SUPPORTED_WORKERS = {
      "sync": "gunicorn.workers.sync.SyncWorker",
      "eventlet": "gunicorn.workers.geventlet.EventletWorker",
      "gevent": "gunicorn.workers.ggevent.GeventWorker",
      "gevent_wsgi": "gunicorn.workers.ggevent.GeventPyWSGIWorker",
      "gevent_pywsgi": "gunicorn.workers.ggevent.GeventPyWSGIWorker",
      "tornado": "gunicorn.workers.gtornado.TornadoWorker"}
  
  
  if sys.version_info >= (3, 3):
      # gaiohttp worker can be used with Python 3.3+ only.
      SUPPORTED_WORKERS["gaiohttp"] = "gunicorn.workers.gaiohttp.AiohttpWorker"
  
new_contents: # -*- coding: utf-8 -
  #
  # This file is part of gunicorn released under the MIT license.
  # See the NOTICE for more information.
  
  import sys
  
  # supported gunicorn workers.
  SUPPORTED_WORKERS = {
      "sync": "gunicorn.workers.sync.SyncWorker",
      "eventlet": "gunicorn.workers.geventlet.EventletWorker",
      "gevent": "gunicorn.workers.ggevent.GeventWorker",
      "gevent_wsgi": "gunicorn.workers.ggevent.GeventPyWSGIWorker",
      "gevent_pywsgi": "gunicorn.workers.ggevent.GeventPyWSGIWorker",
      "tornado": "gunicorn.workers.gtornado.TornadoWorker",
      "gthread": "gunicorn.workers.gthread.ThreadWorker",
  }
  
  
  if sys.version_info >= (3, 3):
      # gaiohttp worker can be used with Python 3.3+ only.
      SUPPORTED_WORKERS["gaiohttp"] = "gunicorn.workers.gaiohttp.AiohttpWorker"
  
subject: Add the 'gthread' worker to the gunicorn.workers.SUPPORTED_WORKERS dictionary