{
  "1": {
    "class_type": "AppNZTTS",
    "_meta": { "title": "Generate narration" },
    "inputs": {
      "text": "Every graph is a small program. Data moves along edges; each node performs one inspectable transformation.",
      "model": "appnz-tts",
      "voice": "default"
    }
  },
  "2": {
    "class_type": "SaveAudio",
    "inputs": { "audio": ["1", 1], "filename_prefix": "appnz-narration" }
  }
}