/**
 * Slack Export Parser for the ingestion engine.
 *
 * Parses the Slack JSON export format:
 * - Root directory contains channels.json, users.json
 * - Each channel has a subdirectory with dated JSON files (YYYY-MM-DD.json)
 * - Each JSON file is an array of message objects
 *
 * Produces a ParsedDocument with messages grouped by conversation thread.
 * Filters out bot messages, join/leave events, and noise.
 */
import type { ParsedDocument } from "./types";
/**
 * Parse a Slack export directory into a ParsedDocument.
 *
 * The directory should contain:
 * - users.json (optional but recommended)
 * - channels.json (optional)
 * - One subdirectory per channel, each containing YYYY-MM-DD.json files
 *
 * @param dirPath - Path to the Slack export root directory
 * @param options - Optional filtering
 */
export declare function parseSlackExport(dirPath: string, options?: {
    /** Only include these channels */
    readonly channels?: string[];
    /** Only include messages after this date */
    readonly since?: string;
    /** Only include messages before this date */
    readonly until?: string;
    /** Filter to specific speakers */
    readonly speakers?: string[];
}): ParsedDocument;
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