Refresh a variable in custom time interval

I was trying out this plugin called "Timer Component". It basically provides us with a stopwatch functionality. We can also stop it automatically at some given time interval. I just tried to create a functionality where this plugin can be used to refresh a variable automatically in custom time intervals ( also less than 30 sec). Is it a good way to do it?

a!localVariables(
  local!total: 50,
  local!bool: false,
  local!refreshAfter: 5,
  {
    stopWatchField(
      /*label: "Stopwatch Timer",*/
      labelPosition: "ABOVE",
      validations: {},
      height: "AUTO",
      action: "START",
      size: null,
      align: null,
      expiredMessage: null,
      color: "#FFF",
      style: null,
      timerDirection: null,
      enableReverseTimer: null,
      reverseTimerColor: null,
      secondsValue: local!total,
      secondsSaveInto: {
        a!save(
          local!bool,
          not(local!bool)
        ),
        a!save(
          local!total,
          local!total-local!refreshAfter
        ),
        if(
          local!total<30,
          a!save(local!total,50),
          {}
        )
      },
      enableAutoStop: true,
      autoStopTimerSeconds: local!total-local!refreshAfter,
      autoStopType: "AT"
    )
  }
)