declare function isObjEmpty(obj?: object): boolean;
declare function deepClone<T>(obj: T): T;
declare function areObjectEquals(obj: object, obj2: object): boolean;
declare function isMac(): boolean;
declare function capitalize(string: string): string;
declare function hexToRgb(hex: string): {
    r: number;
    g: number;
    b: number;
} | null;
declare function luminance(r: number, g: number, b: number): number;
declare function isJsonValid(json: any): boolean;
export { isObjEmpty, deepClone, areObjectEquals, isMac, capitalize, hexToRgb, luminance, isJsonValid, };