List files of invoice Level

Example response

{
  "result": [
    {
      "comments": "sample comments",
      "description": "sample description",
      "download_link": "sample download_link",
      "file_name": "sample file_name",
      "file_type": "sample file_type",
      "modified_date": "sample modified_date",
      "tagList": [
        {
          "tagName": "sample tagName"
        }
      ],
      "upload_date": "sample upload_date",
      "uploaded_by": "sample uploaded_by"
    }
  ],
  "status_reason": "sample status_reason"
}