import { PublicConfigModel } from '../model/public-config-model';
/**
 * Load Config From Environment
 *
 * @since 1.0.0
 * @date 2021-06-01
 * @author Luminous(BGLuminous)
 */
export declare class EnvLoaderUtil {
    private static INSTANCE;
    private readonly config;
    /**
     * Constructor
     *
     * @private single instance mode
     */
    private constructor();
    /**
     * Get current instance
     *
     * @return {EnvLoaderUtil}
     * @constructor
     */
    static getInstance(): EnvLoaderUtil;
    /**
     * Get public config
     *
     * @return {PublicConfigModel}
     */
    getPublicConfig(): PublicConfigModel;
}