Not able to get Switch State using statusPattern
Hi there , 

Im currently using this for the Shelly1 Relay and provided is my config for this accessory. Im am not able to get current state of switch in homebridge. I can do everything else switch on and off, just not able to get current state when I exit and or restart HomeApp. I think my string pattern is not correct. When I make the call to the switch it returns 
`{
    "ison": true,
    "has_timer": false
}` meaning the relay is on. 

Can you please confirm below if I am making the right Regex expression to accommodate this response. 

`"accessories": [
        {
          "accessory": "HTTP-SWITCH",
          "name": "Truck Heater",

          "switchType": "stateful",

          "onUrl": {
            "url": "http://localhost/relay/0?turn=on",
            "method": "POST"
          },
          "offUrl": {
            "url": "http://localhost/relay/0?turn=off",
            "method": "POST"
          },
        
          "statusUrl": {
            "url": "http://localhost/relay/0/status",
            "method": "GET"
          },
	"statusPattern": "{\n    \"ison\": true,\n    \"has_timer\":false\n}"
}
]`