import AppConfig from 'appcfg';
import type { Config as Appcfg } from 'appcfg/Config';
import { IConfigProvider, TConfigParamsNode } from './AConfigBase';
import { IConfigData } from './interface/IConfigData';
export declare class ConfigProvider implements IConfigProvider {
    config: Appcfg<IConfigData>;
    fetch(parameters?: TConfigParamsNode): Promise<AppConfig<any> & IConfigData>;
    extend(json: Partial<IConfigData>): Promise<void>;
    private getSourcesNode;
    private getSourcesBrowser;
}