curl --request POST \
  --url https://www.anyfast.ai/v1beta/models/gemini-2.5-flash:generateContent \
  --header 'Content-Type: application/json' \
  --data '
{
  "contents": [
    {
      "role": "user",
      "parts": [
        {
          "text": "今天重庆天气如何？"
        }
      ]
    }
  ],
  "tools": [
    {
      "googleSearch": {}
    }
  ]
}
'

{
  "candidates": [
    {
      "content": {
        "parts": [
          {
            "text": "根据搜索结果，今天重庆天气..."
          }
        ],
        "role": "model"
      },
      "finishReason": "STOP",
      "groundingMetadata": {
        "searchEntryPoint": {},
        "groundingChunks": [
          {}
        ]
      }
    }
  ],
  "usageMetadata": {
    "promptTokenCount": 123,
    "candidatesTokenCount": 123,
    "totalTokenCount": 123
  }
}