[
    Expression {
        expr: Array {
            items: [
                ArrayItem {
                    key: None,
                    value: Array {
                        items: [
                            ArrayItem {
                                key: None,
                                value: LiteralInteger {
                                    i: "1",
                                },
                                unpack: false,
                                by_ref: false,
                            },
                        ],
                    },
                    unpack: true,
                    by_ref: false,
                },
                ArrayItem {
                    key: None,
                    value: Array {
                        items: [
                            ArrayItem {
                                key: None,
                                value: LiteralInteger {
                                    i: "2",
                                },
                                unpack: false,
                                by_ref: false,
                            },
                        ],
                    },
                    unpack: true,
                    by_ref: false,
                },
            ],
        },
    },
]