[
    Trait(
        Trait {
            start: (
                3,
                1,
            ),
            end: (
                10,
                1,
            ),
            name: Identifier {
                start: (
                    3,
                    7,
                ),
                name: "foo",
                end: (
                    3,
                    11,
                ),
            },
            attributes: [],
            members: [
                Method(
                    Method {
                        start: (
                            7,
                            12,
                        ),
                        end: (
                            9,
                            5,
                        ),
                        name: Identifier {
                            start: (
                                7,
                                21,
                            ),
                            name: "bar",
                            end: (
                                7,
                                24,
                            ),
                        },
                        attributes: [],
                        parameters: MethodParameterList {
                            start: (
                                7,
                                24,
                            ),
                            end: (
                                7,
                                26,
                            ),
                            members: [],
                        },
                        body: Some(
                            [
                                Expression {
                                    expr: Call {
                                        target: Identifier(
                                            Identifier {
                                                start: (
                                                    8,
                                                    9,
                                                ),
                                                name: "exit",
                                                end: (
                                                    8,
                                                    13,
                                                ),
                                            },
                                        ),
                                        args: [
                                            Arg {
                                                name: None,
                                                value: LiteralInteger {
                                                    i: "1",
                                                },
                                                unpack: false,
                                            },
                                        ],
                                    },
                                },
                            ],
                        ),
                        modifiers: MethodModifierGroup {
                            modifiers: [
                                Public {
                                    start: (
                                        7,
                                        5,
                                    ),
                                    end: (
                                        7,
                                        12,
                                    ),
                                },
                            ],
                        },
                        return_type: Some(
                            ParentReference,
                        ),
                        by_ref: false,
                    },
                ),
            ],
        },
    ),
]