{
    "type": "Program",
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        {
            "type": "FunctionDeclaration",
            "id": {
                "type": "Identifier",
                "name": "foo"
            },
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                "type": "BlockStatement",
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                    {
                        "type": "ReturnStatement",
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                            "type": "Literal",
                            "value": "foo",
                            "raw": "'foo'"
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                            {
                                "type": "Line",
                                "value": " Returns foo"
                            },
                            {
                                "type": "Line",
                                "value": " End of comment"
                            }
                        ]
                    }
                ]
            },
            "generator": false,
            "expression": false,
            "async": false,
            "fsParamTypings": [],
            "leadingComments": [
                {
                    "type": "Line",
                    "value": " A function"
                }
            ]
        }
    ],
    "sourceType": "module"
}