{
    "blockOptions": {
        "method": {
        "args": {
            "type": "type",
            "time": "time",
            "weeks": "weeks"
        },
        "name": "isDate"
        }
    },
    "blockType": "when",
    "fields": [
        {
            "name": "type",
            "type": "string",
            "value": "weeks"
        },
        {
            "name": "time",
            "type": "24_hours_time_array",
            "value": ["13:07", "13:08", "13:09"]
        },
        {
            "name": "weeks",
            "type": "int_array",
            "value": [1, 3, -1]
        }
    ]
}