[
    Interface {
        name: Identifier {
            name: "foo",
        },
        extends: [],
        body: [
            AbstractMethod {
                name: Identifier {
                    name: "bar",
                },
                params: [],
                flags: [
                    Public,
                ],
                return_type: None,
                by_ref: false,
            },
        ],
    },
]