Program {
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                    kind: Identifier,
                    location: Location {
                        start: 21,
                        end: 23,
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                },
                name: Token {
                    kind: Identifier,
                    location: Location {
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                        end: 27,
                    },
                },
                opening_paren: Token {
                    kind: Symbol,
                    location: Location {
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                        end: 28,
                    },
                },
                arguments: [
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                            kind: Identifier,
                            location: Location {
                                start: 28,
                                end: 29,
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                        },
                        colon: Token {
                            kind: Symbol,
                            location: Location {
                                start: 29,
                                end: 30,
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                        reference_token: None,
                        arg_type: TypeHint {
                            type_name: Token {
                                kind: Identifier,
                                location: Location {
                                    start: 31,
                                    end: 34,
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                            },
                        },
                    },
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                closing_paren: Token {
                    kind: Symbol,
                    location: Location {
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                        end: 35,
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                return_decl: Some(
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                            location: Location {
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                                end: 38,
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                        },
                        return_type: TypeHint {
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                                kind: Identifier,
                                location: Location {
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                                    end: 42,
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                            },
                        },
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                body: Body {
                    opening_brace: Token {
                        kind: Symbol,
                        location: Location {
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                            end: 44,
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                    statements: [
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                                    location: Location {
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                                        end: 51,
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                                            end: 56,
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                                                location: Location {
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                                                    end: 53,
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                                            },
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                                                    end: 58,
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                                        },
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                                        kind: Symbol,
                                        location: Location {
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                                            end: 60,
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                                    },
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                                                    location: Location {
                                                        start: 69,
                                                        end: 75,
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                                                expression: Variable {
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                                                        kind: Identifier,
                                                        location: Location {
                                                            start: 76,
                                                            end: 77,
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                                                    },
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                                                    kind: Symbol,
                                                    location: Location {
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                                                        end: 78,
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                                    closing_brace: Token {
                                        kind: Symbol,
                                        location: Location {
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                                            end: 84,
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                                else_branch: None,
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                                        end: 95,
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                                },
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                                            end: 108,
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                                    },
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                                                    end: 99,
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                                            },
                                            arguments: [
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                                                        location: Location {
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                                                            end: 103,
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                                                    },
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                                                                    end: 101,
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                                                            },
                                                        },
                                                        Literal {
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                                                                value: Integer(
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                                                                location: Location {
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                                                                    end: 105,
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                                                    ],
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                                                    end: 112,
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                                            arguments: [
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                                                        kind: Symbol,
                                                        location: Location {
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                                                            end: 116,
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                                                    },
                                                    operands: [
                                                        Variable {
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                                                                kind: Identifier,
                                                                location: Location {
                                                                    start: 113,
                                                                    end: 114,
                                                                },
                                                            },
                                                        },
                                                        Literal {
                                                            value: Literal {
                                                                value: Integer(
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                                                                ),
                                                                location: Location {
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                                                                    end: 118,
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                                                            },
                                                        },
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                                                },
                                            ],
                                        },
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                                semicolon: Token {
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                                        end: 120,
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                    closing_brace: Token {
                        kind: Symbol,
                        location: Location {
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                            end: 122,
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                    },
                },
            },
        ),
    ],
}