export declare const is: {
    truthy: (n: any) => boolean;
    exists: (n: any) => boolean;
    undefined: (n: any) => boolean;
    array: (n: any) => boolean;
    num: (n: any) => boolean;
    func: (f: any) => boolean;
    object: (n: any) => boolean;
    emptyObject: (obj: any) => boolean;
    string: (str: any) => boolean;
    cssunit: (value: any) => boolean;
};
export default is;