export interface Cacher<K = any, V = any> {
    has: (key: K) => boolean;
    get: (key: K) => V | undefined;
    set: (key: K, value: V, expireTime?: number) => void;
}
/**
 * 创建一个缓存器
 * @param defaultExpireTime 默认的过期时间，单位ms，默认 1000 ms
 * @param onDelete 监听删除动作
 */
export declare function createCacher<K = any, V = any>({ defaultExpireTime, onDelete, onDestory }?: {
    defaultExpireTime?: number;
    onDelete?: (key: K, value: V | undefined) => void;
    onDestory?: (list: [K, V, any][], code: number) => void;
}): Cacher<K, V>;
export interface Lazyer<V = any> {
    initialized: boolean;
    get: () => V;
}
/**
 * 创建一个惰性值存储器
 */
export declare function createLazyer<V = any>(init: () => V): Lazyer<V>;