Send variable in a vera alert message

I have variable of an device but this doesn’t work i tryed this

Now i want to send the value of the variable lul_light in a alart can that be done ?

luup.call_action(“urn:richardgreen:serviceId:VeraAlert1”, “SendAlert”, {Message = “lichtwaarde {luup.variable_get(“urn:upnp-org:serviceId:LightSensor1”,“CurrentLevel”, 34)} {tone:1}”, Recipients = “basd”}, 46)