export declare class GeneralUtil {
    static URL_REST_COUNTRY: string;
    /** it vlaidates if an object is empty */
    static isEmpty(obj: any): boolean;
    /**
     * Try to get data, Example
     * var a = {"a":{"b":123}}
     * fetchFromObject(a, "a.b")
     * @param obj
     * @param prop
     */
    static fetchFromObject(obj: any, prop: any): any;
    getCountryList(): Promise<any>;
    getCountryOptions(translation?: string): Promise<any>;
}