import { ExtensionBase, ICoreOptions } from '../../models/index';
import { interfaces } from 'inversify';
import { ClassType } from '../utils';
import 'reflect-metadata';
import { ElementEntry } from '../utils';
declare type Extension = ClassType<ExtensionBase>;
export declare class ExtensionLoader {
    private extensionRegistry;
    private config;
    private bound;
    constructor(config: ICoreOptions);
    /** Load external extensions (should be called by core package) */
    loadExternalExtensionModules(): Promise<void>;
    loadInternalExtensionModule(moduleEntry: ElementEntry<Extension>): void;
    bindExtensions(bind: interfaces.Bind): void;
    private getExtensionMetadata;
    private loadExtension;
}
export {};