code: def _terminate_procs(procs):
      
      logging.warn("Stopping all remaining processes")
      for proc, g in procs.values():
          logging.debug("[%s] SIGTERM", proc.pid)
          try:
              proc.terminate()
          except OSError as e:
              # we don't care if the process we tried to kill didn't exist.
              if e.errno != errno.ESRCH:
                  raise
      sys.exit(1)
docs: Terminate all processes in the process dictionary