export declare class TTSPlaybackState {
    isTTSPlaying: boolean;
    currentTTSText: string;
    lastTTSEndTime: number;
    ttsPlayStartTime: number;
    ttsTextHistory: string[];
    playId: number;
    startPlaying(): number;
    reset(): void;
    resetIfMatch(id: number): boolean;
    clearCurrentText(): void;
    appendText(text: string): void;
    isInCooldown(): boolean;
    get cooldownMs(): number;
    addTextToHistory(text: string): void;
    destroy(): void;
}
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