import { ReadAloudChunk, ReadAloudOptions, ReadAloudState } from '../client/read-aloud';
export interface UseReadAloudOptions extends Omit<ReadAloudOptions, "onStateChange" | "onChunk"> {
    /** Called as each chunk starts playing (e.g. to highlight it in the document). */
    onChunk?: (chunk: ReadAloudChunk) => void;
}
export interface UseReadAloudReturn {
    state: ReadAloudState;
    /** True while loading, speaking, or paused. */
    isActive: boolean;
    isSpeaking: boolean;
    isPaused: boolean;
    /** The chunk currently being spoken, or `null` between utterances. */
    currentChunk: ReadAloudChunk | null;
    error: Error | null;
    speak: (text: string) => Promise<void>;
    pause: () => void;
    resume: () => void;
    stop: () => void;
    /** Speak `text`, or stop if something is already playing. */
    toggle: (text: string) => void;
}
export declare function useReadAloud(options?: UseReadAloudOptions): UseReadAloudReturn;