[
    Enum {
        name: Identifier {
            name: "Foo",
        },
        implements: [],
        backed_type: Some(
            String,
        ),
        body: [
            EnumCase {
                name: Identifier {
                    name: "Bar",
                },
                value: None,
            },
            EnumCase {
                name: Identifier {
                    name: "Baz",
                },
                value: Some(
                    LiteralString {
                        value: "Baz",
                    },
                ),
            },
        ],
    },
]