export declare function guid(len: any, radix: any): string;
export declare function getParameterName(fn: any): any;
export declare function looseIdentical(a: any, b: any): boolean;
export declare function stringify(token: any): string;
export declare function isJsObject(o: any): boolean;
export declare const isArray: (arg: any) => arg is any[];
export declare function isNumber(obj: any): boolean;
/**
 * You can use undefined and the strict equality and inequality operators to determine whether a variable has a value.
 * Note: The strict equality operator rather than the standard equality operator must be used here,
 * because x == undefined also checks whether x is null, while strict equality doesn't. null is not equivalent to undefined.
 * @param value 参数
 */
export declare function isUndefined(value: any): boolean;
export declare function deepClone(object: any): any;