curl --request POST \
  --url https://gccai.heqingsong.uk/v1beta/models/gemini-2.5-pro:generateContent \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "contents": [
    {
      "role": "user",
      "parts": [
        {
          "text": "Hello, please introduce yourself"
        }
      ]
    }
  ]
}'

{
  "code": 200,
  "data": {
    "candidates": [
      {
        "content": {
          "role": "model",
          "parts": [
            {
              "text": "Hello! I'm pleased to introduce myself.\n\nI am a large language model, trained and developed by Google..."
            }
          ]
        },
        "finishReason": "STOP",
        "index": 0,
        "safetyRatings": [
          {
            "category": "HARM_CATEGORY_HATE_SPEECH",
            "probability": "NEGLIGIBLE"
          }
        ]
      }
    ],
    "promptFeedback": {
      "safetyRatings": [
        {
          "category": "HARM_CATEGORY_HATE_SPEECH",
          "probability": "NEGLIGIBLE"
        }
      ]
    ]
  },
  "usageMetadata": {
    "promptTokenCount": 4,
    "candidatesTokenCount": 611,
    "totalTokenCount": 2422,
    "thoughtsTokenCount": 1807,
    "promptTokensDetails": [
      {
        "modality": "TEXT",
        "tokenCount": 4
      }
    ]
  }
}