How to write inject in a function

General
9

my flow

[
    {
        "id": "157466c68314f327",
        "type": "tab",
        "label": "Flow 2",
        "disabled": false,
        "info": "",
        "env": []
    },
    {
        "id": "115ada30.1743c6",
        "type": "tuya-local",
        "z": "157466c68314f327",
        "devName": "Test2023",
        "devIp": "192.168.16.214",
        "devId": "bf97ca67f3fbd97b02suxw",
        "devKey": "*TgS)JB5[MQYHi=}",
        "protocolVer": "3.3",
        "renameSchema": "",
        "filterCB": "",
        "x": 760,
        "y": 360,
        "wires": [
            [
                "88349073.f9906"
            ]
        ]
    },
    {
        "id": "88349073.f9906",
        "type": "debug",
        "z": "157466c68314f327",
        "name": "",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "true",
        "targetType": "full",
        "x": 990,
        "y": 360,
        "wires": []
    },
    {
        "id": "797d431a.95651c",
        "type": "inject",
        "z": "157466c68314f327",
        "name": "{\"set\": true, \"dps\" : 20}",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "{\"set\": true, \"dps\" : 20}",
        "payloadType": "json",
        "x": 240,
        "y": 380,
        "wires": [
            [
                "115ada30.1743c6"
            ]
        ]
    },
    {
        "id": "e23704b.8e613f8",
        "type": "inject",
        "z": "157466c68314f327",
        "name": "{\"set\": false, \"dps\" : 20}",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "{\"set\": false, \"dps\" : 20}",
        "payloadType": "json",
        "x": 240,
        "y": 340,
        "wires": [
            [
                "115ada30.1743c6"
            ]
        ]
    },
    {
        "id": "5953c975c9b8758c",
        "type": "inject",
        "z": "157466c68314f327",
        "name": "button2",
        "props": [
            {
                "p": "payload.multiple",
                "v": "true",
                "vt": "bool"
            },
            {
                "p": "payload.data.20",
                "v": "true",
                "vt": "bool"
            },
            {
                "p": "payload.data.24",
                "v": "00da03e803e8",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "x": 250,
        "y": 540,
        "wires": [
            [
                "115ada30.1743c6",
                "0dd461832a677556"
            ]
        ]
    },
    {
        "id": "0dd461832a677556",
        "type": "debug",
        "z": "157466c68314f327",
        "name": "debug 5",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 980,
        "y": 540,
        "wires": []
    },
    {
        "id": "2f79a39ce040a1c0",
        "type": "function",
        "z": "157466c68314f327",
        "name": "function 2",
        "func": "msg.payload = {\n    mutiple: true,\n    data: {\n        \"20\": true,\n        \"24\": \"00da03e803e8\"\n    }\n}\nreturn msg;",
        "outputs": 1,
        "timeout": 0,
        "noerr": 0,
        "initialize": "",
        "finalize": "",
        "libs": [],
        "x": 540,
        "y": 120,
        "wires": [
            [
                "115ada30.1743c6",
                "14e94e8765c4a5c6"
            ]
        ]
    },
    {
        "id": "14e94e8765c4a5c6",
        "type": "debug",
        "z": "157466c68314f327",
        "name": "debug 6",
        "active": true,
        "tosidebar": true,
        "console": false,
        "tostatus": false,
        "complete": "false",
        "statusVal": "",
        "statusType": "auto",
        "x": 980,
        "y": 120,
        "wires": []
    },
    {
        "id": "97bfeea14724561d",
        "type": "inject",
        "z": "157466c68314f327",
        "name": "button1",
        "props": [
            {
                "p": "payload"
            },
            {
                "p": "topic",
                "vt": "str"
            }
        ],
        "repeat": "",
        "crontab": "",
        "once": false,
        "onceDelay": 0.1,
        "topic": "",
        "payload": "true",
        "payloadType": "bool",
        "x": 250,
        "y": 120,
        "wires": [
            [
                "2f79a39ce040a1c0"
            ]
        ]
    }
]