declare const min: (arr: any[], attr?: any) => number;
declare const max: (arr: any[], attr?: any) => number;
declare const union: (arr1: any[], arr2: any[]) => any[];
declare const isEmpty: (obj: any) => boolean;
declare const debounce: (func: any, wait: any, immediate?: any) => () => void;
export { min, max, union, isEmpty, debounce };