curl --location '/v1beta/models/gemini-3.8-flash:generateContent' \
--header 'Authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
    "contents": [
        {
            "role": "user",
            "parts": [
                {
                    "text": "Hi"
                }
            ]
        }
    ],
    "thinkingConfig": {
        "thinkingLevel": "medium"
    }
}'