Tag Properties 'bindType' - what's the default string for No Binding?

Hi, i got it working using this syntax :

alarms = [
            {
                "name":"Alarm",               
				"enabled":{
					"bindType":"Expression",
					"value":"True"
							}
                
            }
        ]

Or you could use

alarms = [
            {
                "name":"Alarm",               
				"enabled":"True" 
            }
        ]