{
  "article_id": "A021",
  "synthetic": true,
  "streams": [
    [
      {
        "type": "response.output_text.delta",
        "delta": "\u7532"
      },
      {
        "type": "demo.progress",
        "text": "\u4e0d\u53ef\u5c55\u793a"
      },
      {
        "type": "response.output_text.delta",
        "delta": "\u4e59"
      },
      {
        "type": "response.completed"
      }
    ],
    [
      {
        "type": "response.output_text.delta",
        "delta": "\u7532"
      },
      {
        "type": "demo.progress",
        "text": "\u4e0d\u53ef\u5c55\u793a"
      },
      {
        "type": "response.output_text.delta",
        "delta": "\u4e59"
      }
    ],
    [
      {
        "type": "demo.text",
        "text": "\u4e0d\u53ef\u5c55\u793a"
      },
      {
        "type": "response.output_text.delta",
        "delta": "\u5df2\u77e5"
      },
      {
        "type": "response.completed"
      }
    ]
  ],
  "expected": [
    {
      "text": "\u7532\u4e59",
      "completed": true
    },
    {
      "text": "\u7532\u4e59",
      "completed": false
    },
    {
      "text": "\u5df2\u77e5",
      "completed": true
    }
  ]
}