[
    Expression {
        expr: Array {
            items: [
                ArrayItem {
                    key: None,
                    value: Variable(
                        Variable {
                            start: (
                                3,
                                3,
                            ),
                            name: "foo",
                            end: (
                                3,
                                7,
                            ),
                        },
                    ),
                    unpack: false,
                    by_ref: true,
                },
            ],
        },
    },
]