docs: def handle_stop_command(srv, pid):
      """ Kill the running service
          :param srv: `str` containing the service to kill
              passed in as underscore_case
      """
      service = 'pinky_{}'.format(srv)
      twisted_pid = filepath.FilePath(pid)
      if not twisted_pid.exists():
          print('error: {}.pid file can\'t be found.'.format(service))
          sys.exit(-1)
  
      pid = twisted_pid.open().read()
      print('killing {} process id {} with SIGINT signal'.format(
          service, pid).ljust(73), end='')
      try:
          filepath.os.kill(int(pid), signal.SIGINT)
          print('[{}]'.format(darkgreen('Ok')))
      except:
          print('[{}]'.format(darkred('Fail')))
          raise