declare const typeOf: (source: unknown) => string;
/**
 * 是否是对象
 * @param source
 */
declare const isObject: (source: unknown) => boolean;
/**
  * 是否是boolean
  * @param source
  */
declare const isBoolean: (source: unknown) => boolean;
/**
  * 是否是字符串
  * @param source
  */
declare const isString: (source: unknown) => boolean;
/**
  * 是否是对象
  * @param source
  */
declare const isNumber: (source: unknown) => boolean;
/**
  * 是否是正则表达式
  * @param source
  */
declare const isRegExp: (source: unknown) => boolean;
/**
  * 是否是方法
  * @param source
  */
declare const isFunction: (source: unknown) => boolean;
/**
  * 是否是undefined
  * @param source
  */
declare const isUndefined: (source: unknown) => boolean;
/**
  * 是否是数组
  * @param source
  */
declare const isArray: (source: unknown) => boolean;
/**
  * 是否为空
  * @param source
  */
declare const isEmpty: (source: unknown) => boolean;
export { isObject, isBoolean, isString, isNumber, isRegExp, isFunction, isUndefined, isArray, isEmpty, typeOf, };