import { AnyObject } from 'src';
export declare function isNull(obj: any): true | undefined;
export declare function isObject(obj: any): boolean;
export declare function isFunction(fn: any): boolean;
export declare function isArray(value: any): boolean;
export declare function isString(value: any): boolean;
export declare function isNumber(value: any): boolean;
export declare function isBoolean(value: any): boolean;
export declare function hasChanged(value: any, oldValue: any): boolean;
export declare function $(selector: string): Element | null;
export declare function getFunArgs(func: Function): string[];
export declare function getFunName(func: Function): string | RegExpMatchArray;
/**
 * 打印 anyobj
 * @param obj
 * @returns
 */
export declare function getKeys<T>(obj: T): (keyof T)[];
export declare function printObject(obj: AnyObject): void;
/**
 * 为了依赖收集
 * @param obj
 */
export declare function trackObject(obj: AnyObject): void;