export namespace Types {
    const NUMBER: string;
    const OBJECT: string;
    const NULL: string;
    const ARRAY: string;
    const UNDEFINED: string;
    const BOOLEAN: string;
    const STRING: string;
    const DATE: string;
}
export function getType(v: any): string;
export function isType(v: any, ...types: string[]): boolean;
export function isNumber(v: any): boolean;
export function isObject(v: any): boolean;
export function isNull(v: any): boolean;
export function isArray(v: any): boolean;
export function isUndefined(v: any): boolean;
export function isBoolean(v: any): boolean;
export function isString(v: any): boolean;
export function isDate(v: any): boolean;
export function isEmpty(v: any): boolean;
export function toArray(o: any): any[];