/// <reference types="node" />
import EventEmitter from 'events';
export declare function shallowEquals(obj1: any, obj2: any): boolean;
export default class CommonStore<T extends Record<any, any>> {
    protected events: EventEmitter<[never]>;
    protected prevState: T;
    protected state: T;
    constructor(defaultState: T);
    protected setState(state: Partial<T>): void;
    /**
     * 获取最新的状态
     */
    getState(): T;
    /**
     * 在函数组件中订阅状态变化
     */
    useState<SubState = T>(callback?: (state: T) => SubState): SubState;
    /**
     * 在函数中监听事件变化
     * @param eventName 事件名称
     * @param callback
     */
    useEventListener(eventName: string, callback: (...args: any[]) => void): void;
    useStateChangedListener(callback: (prevState: T, state: T) => void): void;
}