import { OblFile } from './obl-types';
import { HistoryEntry } from '../history';
/**
 * .obl (Open Board Logging) Utility
 *
 * Provides parsing and generation support for the .obl format.
 */
export declare class OblUtil {
    /**
     * Parse an OBL JSON string.
     * Handles the optional /* notice * / at the start of the file.
     */
    static parse(json: string): OblFile;
    /**
     * Stringify an OBL file object.
     * Optionally adds the recommended notice comment.
     */
    static stringify(obl: OblFile, includeNotice?: boolean): string;
    /**
     * Convert an OBL file to internal HistoryEntry format.
     */
    static toHistoryEntries(obl: OblFile): HistoryEntry[];
    /**
     * Convert HistoryEntries to an OBL file object.
     */
    static fromHistoryEntries(entries: HistoryEntry[], userId: string, source?: string): OblFile;
}
/**
 * .obl Anonymization Utility
 */
export declare class OblAnonymizer {
    /**
     * Apply anonymization to an OBL file.
     */
    static anonymize(obl: OblFile, types: string[]): OblFile;
    private static applyTimestampShift;
    private static applyGeolocationMasking;
    private static applyUrlStripping;
    private static applyNameMasking;
}