/// <reference types="node" />
import { EventEmitter } from "events";
export declare interface EventsBus {
    on(event: "task:result", listener: (name: string) => void): this;
    on(event: "runbook:result", listener: (name: string) => void): this;
    on(event: "runbook:log", listener: (name: string) => void): this;
    on(event: "error", listener: (name: string) => void): this;
    on(event: "debug", listener: (name: string) => void): this;
    emit(event: string | symbol, ...args: any[]): boolean;
}
export declare class EventsBus extends EventEmitter {
    private static instance;
    constructor();
}