Visualizer 
{
    "value": "ready",
    "previousValue": "",
    "event": {},
    "previousEvent": {},
    "context": {
        "checked": false,
        "value": "on",
        "disabled": false,
        "id": ":R1m:",
        "name": "checkbox",
        "fieldsetDisabled": false,
        "isIndeterminate": false,
        "isChecked": false,
        "isDisabled": false,
        "readOnly": false
    },
    "done": false,
    "tags": [],
    "nextEvents": [
        "CHECKED.TOGGLE",
        "CHECKED.SET",
        "CONTEXT.SET"
    ],
    "changed": false
}