How to use the octoprint.util.RepeatedTimer function in OctoPrint

def on_startup(self, host, port):
		self.hx = HX711(20, 21)
		self.hx.set_reading_format("LSB", "MSB") 
		self.hx.reset()
		self.hx.power_up()
		self.t = octoprint.util.RepeatedTimer(3.0, self.check_weight)
		self.t.start()

def on_event(self, event, payload):
		if event == "PrintStarted":
			self._repeat_timer = octoprint.util.RepeatedTimer(60, self.send_progress)
			self._repeat_timer.start()
			self._logger.info("Octoscreen Plugin progress reporting started.")  
		if event in ["PrintFailed", "PrintDone"] :
			if self._repeat_timer != None:
				self._repeat_timer.cancel()
				self._repeat_timer = None

def _restartTimer(self):
		# stop the timer
		if self._checkTempTimer:
			self._logger.debug(u"Stopping Timer...")
			self._checkTempTimer.cancel()
			self._checkTempTimer = None

		# start a new timer
		interval = self._settings.get_int(['interval'])
		if self._settings.get_boolean(['enabled']) and interval:
			self._logger.debug(u"Starting Timer...")
			self._checkTempTimer = RepeatedTimer(interval, self.CheckTemps, None, None, True)
			self._checkTempTimer.start()

def _timer_start(self):
		if self._abort_timer is not None:
			return

		self._tplinksmartplug_logger.debug("Starting abort power off timer.")

		self._timeout_value = self.abortTimeout
		self._abort_timer = RepeatedTimer(1, self._timer_task)
		self._abort_timer.start()

def start_heartbeat_timer(self):
        heartbeat_event = self._settings.get(["supported_events"], merged=True).get(
            "Heartbeat"
        )

        heartbeat_enabled = heartbeat_event.get("Enabled")
        if not heartbeat_enabled or heartbeat_enabled == False:
            return

        heartbeat_timer_interval = int(heartbeat_event.get("IntervalTime"))
        if heartbeat_timer_interval > 0:
            self._logger.debug(
                "Starting heartbeat timer: " + str(heartbeat_timer_interval) + "min(s)"
            )
            self.heartbeat_timer = RepeatedTimer(
                heartbeat_timer_interval * 60,
                self.heartbeat_timer_tick,
                run_first=False,
            )
            self.heartbeat_timer.start()

def _restart_timer(self):
		# stop the timer
		if self._checkTempTimer:
			self._logger.debug(u"Stopping Timer...")
			self._checkTempTimer.cancel()
			self._checkTempTimer = None

		# start a new timer
		interval = self._settings.get_int(['temp_interval'])
		if interval:
			self._logger.debug(u"Starting Timer...")
			self._checkTempTimer = RepeatedTimer(interval, self.run_timer_job, None, None, True)
			self._checkTempTimer.start()