传入多文档

curl --location --request POST 'https://dashscope.aliyuncs.com/compatible-mode/v1/chat/completions' \
--header 'Authorization: Bearer {{DASHSCOPE_API_KEY}}' \
--header 'Content-Type: application/json' \
--data-raw '{
    "model": "qwen-long",
    "messages": [
            {"role": "system", "content": "You are a helpful assistant."},
            {
                "role": "system",
                "content": "{\"content\": \"百炼X1 搭载6.7英寸1440 x 3200像素超清屏幕...\n\", \"file_type\": \"pdf\", \"filename\": \"test_case_1\", \"title\": \"test_case_1\"}"
            },
            {
                "role": "system",
                "content": "{\"content\": \"星尘S9 Pro —— 创新视觉盛宴：突破性6.9英寸1440 x 3088像素...\n\", \"file_type\": \"pdf\", \"filename\": \"test_case_2\", \"title\": \"test_case_2\"}"
            },
            {"role": "user", "content": "这两篇文章讨论的产品有什么异同点？"}
        ],
    "stream": true,
    "stream_options": {
        "include_usage": true
    }
}'