[
    Function(
        Function {
            start: (
                1,
                7,
            ),
            end: (
                1,
                29,
            ),
            name: SimpleIdentifier {
                span: (
                    1,
                    16,
                ),
                value: "foo",
            },
            attributes: [],
            parameters: FunctionParameterList {
                start: (
                    1,
                    19,
                ),
                end: (
                    1,
                    21,
                ),
                members: [],
            },
            return_type: Some(
                Void,
            ),
            by_ref: false,
            body: [],
        },
    ),
]
