Storing a value in a local variable

Configuration:

{
    "data": {
        "delay": 2000
    },
    "methods": {
        "setDelay": "sm.data.delay = msg.payload;output=false;",
        "getDelay": "msg.delay = sm.data.delay;output=true;",
        "status": {
            "fill": "blue",
            "shape": "dot",
            "text": {
                "get": "sm.data.delay"
            }
        }
    }
}

Flow

[{"id":"2103589f.f4ca68","type":"dsm","z":"57ef434a.058a6c","name":"delay","sm_config":"{\n    \"data\": {\n        \"delay\": 2000\n    },\n    \"methods\": {\n        \"setDelay\": \"sm.data.delay = msg.payload;output=false;\",\n        \"getDelay\": \"msg.delay = sm.data.delay;output=true;\",\n        \"status\": {\n            \"fill\": \"blue\",\n            \"shape\": \"dot\",\n            \"text\": {\n                \"get\": \"sm.data.delay\"\n            }\n        }\n    }\n}","x":300,"y":3040,"wires":[["6d6468dd.45fd88"]]},{"id":"b515039c.868a4","type":"inject","z":"57ef434a.058a6c","name":"","topic":"setDelay","payload":"3000","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":110,"y":3000,"wires":[["2103589f.f4ca68"]]},{"id":"a9267621.f4dfa8","type":"inject","z":"57ef434a.058a6c","name":"getDelay","topic":"getDelay","payload":"delayed msg","payloadType":"str","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":100,"y":3080,"wires":[["2103589f.f4ca68"]]},{"id":"1c7b4650.41cb3a","type":"inject","z":"57ef434a.058a6c","name":"","topic":"setDelay","payload":"4000","payloadType":"num","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":111,"y":3038,"wires":[["2103589f.f4ca68"]]},{"id":"6d6468dd.45fd88","type":"delay","z":"57ef434a.058a6c","name":"","pauseType":"delayv","timeout":"1","timeoutUnits":"seconds","rate":"1","nbRateUnits":"1","rateUnits":"second","randomFirst":"1","randomLast":"5","randomUnits":"seconds","drop":false,"x":440,"y":3040,"wires":[["4b822dd8.f6c324"]]},{"id":"4b822dd8.f6c324","type":"debug","z":"57ef434a.058a6c","name":"","active":true,"tosidebar":true,"console":false,"tostatus":true,"complete":"payload","x":590,"y":3040,"wires":[]}]