{
  "objectType": "article",
  "displayName": "article abc",
  "content": "foo bar",
  "image": ["http://pic/ture.jpg"],
  "attachments": [{
    "objectType": "image",
    "mimeType": "image/png",
    "url": "http://pic/ture.jpg",
    "displayName": "my alt text"
  }]
}
