import { FnPeriodicallyNamespace as T } from './type';
export declare enum OperationStateEnum {
    STOP = 0,
    RUN = 1
}
export declare class FnPeriodically {
    private fn;
    private timer;
    private delay;
    private state;
    private immediate;
    private arg;
    private isUnmountStop;
    constructor(option: T.ConstructorOption);
    /**
     * 循环运行函数
     * @param params
     * @private
     */
    private loopRun;
    /**
     * 手动运行函数，循环周期的起点
     * @param immediate
     * @param arg
     */
    private runId;
    /**
     * 手动运行函数，循环周期的起点
     * @param immediate 是否立即执行 缺省值 true
     * @param arg
     */
    run(immediate?: boolean, arg?: any[]): void;
    /**
     * 停止周期执行
     */
    stop(): void;
    /**
     * 设置间隔时间
     * @param delay
     */
    setDelay(delay: number): void;
}