interface SpeechSynthesisUtteranceEventMap {
    boundary: SpeechSynthesisEvent;
    end: SpeechSynthesisEvent;
    error: SpeechSynthesisErrorEvent;
    mark: SpeechSynthesisEvent;
    pause: SpeechSynthesisEvent;
    resume: SpeechSynthesisEvent;
    start: SpeechSynthesisEvent;
}

Properties