export interface RichRun {
    t: string;
    b?: boolean;
    i?: boolean;
    u?: boolean;
}
export interface RichBlock {
    bullet: boolean;
    heading?: boolean;
    runs: RichRun[];
}
export declare function parseRich(text: string | null | undefined): RichBlock[];
export declare const richToPlain: (blocks: RichBlock[]) => string;
export declare const stripRich: (text: string | null | undefined) => string;