import nconf from 'nconf';
import { IDataConfiguration, IDatabaseProxyConfiguration, IServerConfiguration, IMailConfiguration, IConfigOptions } from './config.interface';
export declare class Config {
    private static defaultsOptions;
    static readConfig(basePath: string, relPath: string, opts?: IConfigOptions): nconf.Provider;
    static getConfig(key?: string): any;
    static getBasePath(): string;
    static getDatabaseConfig(): IDataConfiguration;
    static getDatabaseProxyConfig(): IDatabaseProxyConfiguration;
    static getServerConfig(): IServerConfiguration;
    static getMailConfig(): IMailConfiguration;
}