{
    "config": {
        "vendor-dir": "foo"
    },
    "require": {
        "a/b": "^1.0"
    },
    "require-dev": {
        "c/d": "^2.0"
    },
    "extra": {
        "update-helper": [
            "Foo\\Biz"
        ]
    }
}
