{
  "lesson": "M-P021",
  "targetProduct": "not_run",
  "nativePractice": "author_original_input_and_reference",
  "dataIdentity": "synthetic author-owned examples, expected values are acceptance references",
  "assets": [],
  "sources": [
    {
      "url": "https://api.napkin.ai/",
      "title": "Napkin API Documentation",
      "feature": "在有效期内鉴权下载并保存本地文件，避免把临时URL直接放文章"
    },
    {
      "url": "https://www.napkin.ai/api/",
      "title": "Napkin API Product FAQ",
      "feature": "在有效期内鉴权下载并保存本地文件，避免把临时URL直接放文章"
    }
  ]
}