{
  "type": "init",
  "config": {
    "language": "en",
    "sample_rate": 16000,
    "audio_format": "pcm_s16le",
    "enable_partials": true,
    "enable_speaker_diarization": true,
    "language_hints": [
      "en"
    ]
  }
}

{
  "type": "audio",
  "data": "UklGRiQAAABXQVZFZm10IBAAAAABAAEA..."
}

{
  "type": "finalize"
}

{
  "type": "close"
}

{
  "type": "keepalive"
}

{
  "type": "ready",
  "session_id": "sess_abc123"
}

{
  "type": "partial_transcript",
  "transcript": "Hello world",
  "confidence": 0.92,
  "tokens": [
    {
      "text": "Hello",
      "start_ms": 0,
      "end_ms": 500,
      "confidence": 0.95,
      "is_final": false,
      "speaker": "0"
    },
    {
      "text": " world",
      "start_ms": 500,
      "end_ms": 1000,
      "confidence": 0.9,
      "is_final": false,
      "speaker": "0"
    }
  ]
}

{
  "type": "final_transcript",
  "transcript": "Hello world, this is a test.",
  "confidence": 0.95,
  "language": "en",
  "duration": 2.5
}

{
  "type": "error",
  "code": "auth_error",
  "message": "Invalid or expired API key"
}