/**
 * Serialize all (non-empty) chat messages in a tab to a markdown string
 * @param tabId Corresponding tab ID.
 * @returns The bodies of chat cards in markdown format, separated by \n\n---\n\n
 */
export declare const serializeMarkdown: (tabId: string) => string;
/**
 * Serialize all (non-empty) chat messages in a tab to an HTML string
 * @param tabId Corresponding tab ID.
 * @returns The bodies of chat cards in HTML format
 */
export declare const serializeHtml: (tabId: string) => string;