old_contents: import sys
  from deployer.celery import app
  
  if __name__ == '__main__':
      argv = sys.argv if len(sys.argv) > 1 else [__file__, '--loglevel=info']
      app.worker_main(argv=argv)
  
new_contents: import sys
  from deployer.celery import app
  
  if __name__ == '__main__':
      argv = sys.argv if len(sys.argv) > 1 else [__file__, '--loglevel=info']
      app.conf.CELERYD_CONCURRENCY = 2
      app.worker_main(argv=argv)
  
subject: Set concurrency to 2 for local