[
    Class {
        name: Identifier {
            start: (
                3,
                7,
            ),
            name: "Foo",
            end: (
                4,
                1,
            ),
        },
        attributes: [],
        extends: None,
        implements: [],
        body: [
            Method {
                name: Identifier {
                    start: (
                        5,
                        14,
                    ),
                    name: "bar",
                    end: (
                        5,
                        17,
                    ),
                },
                attributes: [],
                params: [],
                body: [
                    Expression {
                        expr: Closure {
                            params: [
                                Param {
                                    name: Variable {
                                        start: (
                                            7,
                                            31,
                                        ),
                                        name: "foo",
                                        end: (
                                            7,
                                            35,
                                        ),
                                    },
                                    attributes: [],
                                    type: Some(
                                        SelfReference,
                                    ),
                                    variadic: false,
                                    default: None,
                                    flags: [],
                                    by_ref: false,
                                },
                            ],
                            attributes: [],
                            uses: [],
                            return_type: None,
                            body: [],
                            static: true,
                            by_ref: false,
                        },
                    },
                ],
                flags: [],
                return_type: None,
                by_ref: false,
            },
        ],
        flags: [],
    },
]