/**
 * SessionDumper — generates Markdown debug dumps of session conversations.
 *
 * Recursively traverses parent → child → grandchild sessions, rendering
 * all user/assistant messages, tool calls, and cross-session communication
 * into a single structured Markdown document.
 *
 * @module
 */
import type { SessionCatalog } from "./cms.js";
export declare class SessionDumper {
    private catalog;
    constructor(catalog: SessionCatalog);
    /**
     * Dump a single session and all its descendants to Markdown.
     */
    dump(sessionId: string): Promise<string>;
    /**
     * Dump all active sessions to Markdown.
     */
    dumpAll(): Promise<string>;
    private _buildTree;
    private _renderTreeAscii;
    private _renderSessionDetail;
}
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