hocon 0.5.1

{
    // first comment
    "a": 5, // second comment
    "b": 6.7 # other comment
    "c": [
        1 // comment in array
        2, # other comment in array
        # multi line comment

        // and new comment
        3
    ],
    "d": true,
    "e": "val",
    "f": {
        "g": 12,
        "g": false
    }
}