export declare function insertContentInHtml(html: string, content: string): string;
export declare function wrapWithRichTextMarker(html: string): string;
export declare function hasRichTextMarker(html: string): boolean;
export declare function insertContentInMarker(html: string, content: string): string;
export declare function getMarkerContent(html: string): string;
export declare function parseRichTextMarker(html: string): {
    before: string;
    marker: string;
    after: string;
    withMarker: boolean;
};