curl --request POST \
  --url 'https://api.elkapi.com/v1beta/models/gemini-3.1-pro-preview:generateContent' \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "contents": [
    "こんにちは、自己紹介してください"
  ],
  "generationConfig": {
    "responseModalities": [
      "responseModalitie"
    ],
    "speechConfig": {
      "voiceConfig": {
        "prebuiltVoiceConfig": {
          "voiceName": "voiceName"
        }
      }
    }
  }
}'

{
  "candidates": [
    {
      "content": "こんにちは、自己紹介してください",
      "finishReason": "finishReason",
      "safetyRatings": [
        {}
      ]
    }
  ],
  "usageMetadata": {
    "promptTokenCount": 1,
    "candidatesTokenCount": 1,
    "totalTokenCount": 1
  }
}