# socket transparent 0
[
    {
        "match": {
            "left": {
                "socket": {
                    "key": "transparent"
                }
            },
            "right": 0
        }
    }
]

# socket transparent 1
[
    {
        "match": {
            "left": {
                "socket": {
                    "key": "transparent"
                }
            },
            "right": 1
        }
    }
]