/** Streams spoken prose, keeping code and link targets out of synthesis. */
export declare class SpeakableSegmenter {
    private readonly maxCharacters;
    private readonly minCharacters;
    private readonly firstMinCharacters;
    private pending;
    private fence;
    private emitted;
    constructor(maxCharacters?: number, minCharacters?: number, firstMinCharacters?: number);
    push(delta: string): string[];
    flush(): string[];
    private toSpeech;
}