import { IExtensionEvents, IExtensionObject } from './IExtension';
import { ExtensionApp } from './ExtensionApp';
import { ExtensionDB } from './ExtensionDB';
import { ExpressRouterWrapper } from './ExpressRouterWrapper';
import * as express from 'express';
import { ExtensionMessengerHandler } from './ExtensionMessengerHandler';
import { ExtensionConfig } from './ExtensionConfig';
import { UIExtension } from './UIExtension';
export declare class ExtensionObject<C> implements IExtensionObject<C> {
    readonly extensionId: string;
    readonly extensionName: string;
    readonly folder: string;
    readonly _app: ExtensionApp;
    readonly config: ExtensionConfig<C>;
    readonly db: ExtensionDB;
    readonly paths: import("../../ProjectPath").ProjectPathClass;
    readonly Logger: import("../../Logger").ILogger;
    readonly events: IExtensionEvents;
    readonly RESTApi: ExpressRouterWrapper;
    readonly messengers: ExtensionMessengerHandler;
    readonly ui: UIExtension<C>;
    /**
     * @param extensionId - Unique ID used internally to track this extension instance (may have _1, _2 suffix if name collision occurs)
     * @param extensionName - Display name of the extension (typically from package.json)
     * @param folder - Folder name where the extension is stored (also used as config key in Config.Extensions.extensions)
     * @param extensionRouter - Express router for extension REST API endpoints
     * @param events - Extension events for hooking into gallery functionality
     */
    constructor(extensionId: string, extensionName: string, folder: string, extensionRouter: express.Router, events: IExtensionEvents);
}