Thing topic Wassersensor "Xiaomi Wassersensor" (mqtt:broker:mybroker){
        Channels:
            Type contact : status
                [ stateTopic="zigbee2mqtt/Wassersensor", transformationPattern="JS:getZigbeeLeak2Contact.js" ]
            Type number : voltage
                [ stateTopic="zigbee2mqtt/Wassersensor", transformationPattern="JSONPATH:$.voltage" ]
            Type number : battery
                [ stateTopic="zigbee2mqtt/Wassersensor", transformationPattern="JSONPATH:$.battery" ]
            Type number : linkquality
                [ stateTopic="zigbee2mqtt/Wassersensor", transformationPattern="JSONPATH:$.linkquality" ]
    }