[
    Expression {
        expr: InterpolatedString {
            parts: [
                Expr(
                    Variable(
                        Variable {
                            start: (
                                1,
                                10,
                            ),
                            name: "foo",
                            end: (
                                1,
                                13,
                            ),
                        },
                    ),
                ),
                Expr(
                    ArrayIndex {
                        array: Variable(
                            Variable {
                                start: (
                                    1,
                                    16,
                                ),
                                name: "foo",
                                end: (
                                    1,
                                    19,
                                ),
                            },
                        ),
                        index: Some(
                            LiteralInteger {
                                i: 0,
                            },
                        ),
                    },
                ),
                Expr(
                    ArrayIndex {
                        array: Variable(
                            Variable {
                                start: (
                                    1,
                                    25,
                                ),
                                name: "foo",
                                end: (
                                    1,
                                    28,
                                ),
                            },
                        ),
                        index: Some(
                            LiteralString {
                                value: "bar",
                            },
                        ),
                    },
                ),
                Expr(
                    DynamicVariable {
                        name: Variable(
                            Variable {
                                start: (
                                    1,
                                    39,
                                ),
                                name: "foo",
                                end: (
                                    1,
                                    43,
                                ),
                            },
                        ),
                    },
                ),
            ],
        },
    },
]