How to use restart_existing_alarms method in localstack

Best Python code snippet using localstack_python

provider.py

Source:provider.py

...171    def on_before_start(self):172        # re-schedule alarms for persistence use-case173        def restart_alarms(*args):174            poll_condition(lambda: SERVICE_PLUGINS.is_running("cloudwatch"))175            self.alarm_scheduler.restart_existing_alarms()176        start_worker_thread(restart_alarms)177    def on_before_stop(self):178        self.alarm_scheduler.shutdown_scheduler()179    def delete_alarms(self, context: RequestContext, alarm_names: AlarmNames) -> None:180        moto.call_moto(context)181        for alarm_name in alarm_names:182            arn = aws_stack.cloudwatch_alarm_arn(alarm_name)183            self.alarm_scheduler.delete_scheduler_for_alarm(arn)184    def get_raw_metrics(self, request: Request):185        region = aws_stack.extract_region_from_auth_header(request.headers)186        backend = cloudwatch_backends.get(region)187        if backend:188            result = backend.metric_data189        else:...

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