[
    Expression {
        expr: DynamicVariable {
            name: Call {
                target: Identifier(
                    Identifier {
                        start: (
                            1,
                            9,
                        ),
                        name: "foo",
                        end: (
                            1,
                            12,
                        ),
                    },
                ),
                args: [],
            },
        },
    },
]