import { AbstractHistoryObject } from '../types';

/**
 * Represents the parameters for a history object.
 */
type Params = {
    /**
     * A unique identifier for the history object.
     */
    key: string;
    /**
     * An optional title for the history object.
     */
    title?: string;
    /**
     * An optional description for the history object.
     */
    description?: string;
    /**
     * The date and time when the history object was created.
     */
    timestamp: Date;
};
/**
 * Represents a history object with a key, title, description, and timestamp.
 */
export declare class HistoryObject implements AbstractHistoryObject, Params {
    key: string;
    description: string | undefined;
    timestamp: Date;
    isHistoryObject: boolean;
    constructor(key: string, description?: string);
    toJSON(): string;
    fromJSON(json: string): void;
}
export {};