ParserRequest

{
    "files": [
        {
            "doc_id": "string",
            "file_url": "string",
            "url": "string",
            "filename": "string",
            "role": "subject"
        }
    ],
    "package_no": "2",
    "packageNo": "string",
    "callback_url": "https://upstream.example.com/hooks/parse",
    "callbackUrl": "string"
}