chromium/chrome/test/data/extensions/manifest_tests/tts_engine_invalid_voices_7.json

{
  "name": "test",
  "manifest_version": 3,
  "version": "1",
  "tts_engine": {
    "voices": [
      {
        "event_types": [
          "on vacation"
        ]
      }
    ]
  }
}