Audio chunk acknowledge (ack)

{
  "id": "45463597-20b7-4af7-b3b3-f5fb778203ab",
  "event": "live.audio_chunk",
  "payload": {
    "session_id": "4a39145c-2844-4557-8f34-34883f7be7d9",
    "created_at": "2021-09-01T12:00:00.123Z",
    "acknowledged": true,
    "error": null,
    "type": "audio_chunk",
    "data": {
      "byte_range": [
        1024,
        2048
      ],
      "time_range": [
        0.8,
        0.9
      ]
    }
  }
}