DefinitionTree {
    definitions: [
        Enum(
            Backed(
                BackedEnumDefinition {
                    comments: CommentGroup {
                        comments: [],
                    },
                    attributes: [],
                    enum: Keyword {
                        value: "enum",
                        position: 0,
                    },
                    name: Identifier {
                        position: 5,
                        value: "Foo",
                    },
                    backed_type: Int(
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                            position: 10,
                            value: "int",
                        },
                    ),
                    implements: None,
                    body: BackedEnumBodyDefinition {
                        left_brace: 14,
                        members: [
                            Case(
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                                    attributes: [],
                                    case: Keyword {
                                        value: "case",
                                        position: 20,
                                    },
                                    name: Identifier {
                                        position: 25,
                                        value: "Bar",
                                    },
                                    equals: 29,
                                    value: Literal(
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                                                comments: CommentGroup {
                                                    comments: [],
                                                },
                                                value: "2",
                                                position: 31,
                                            },
                                        ),
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                                    semicolon: 32,
                                },
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                                    attributes: [],
                                    case: Keyword {
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                                        position: 38,
                                    },
                                    name: Identifier {
                                        position: 43,
                                        value: "Baz",
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                                    equals: 47,
                                    value: Literal(
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                                                comments: CommentGroup {
                                                    comments: [],
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                                                position: 49,
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                                        ),
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                                    semicolon: 50,
                                },
                            ),
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                        right_brace: 52,
                    },
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            ),
        ),
    ],
    eof: 55,
}