import EventEmitter from 'eventemitter3';
import type { Cluster } from 'cluster';
import type { LogEvent } from './logEvent';
import type { LevelName, LoggerArg } from './types';
import type { LogWriter, ShutdownCb } from './logWriter';
import type { Logger } from './logger';
export type EventListenerConfig<TData extends Array<LoggerArg>, TContext extends Record<string, any>, TFormattedData, TConfigA extends Record<string, any>, TDataOut extends Array<LoggerArg> = TData> = {
    levelName: LevelName;
    listener: (event: LogEvent<TData, TContext>) => void;
    logger: Logger<TData, TContext, TDataOut>;
    logWriter: LogWriter<TFormattedData, TConfigA>;
};
export declare function getEventBus(): EventBus;
export declare function shutdown(callback?: ShutdownCb): Promise<void>;
declare class EventBus extends EventEmitter<'log4ts:pause'> {
    private _logWriterListeners;
    private _logWriters;
    private _loggers;
    cluster: Cluster | false;
    enabled: boolean;
    constructor();
    isMaster(): boolean;
    private sendToListeners;
    private receiver;
    send(msg: LogEvent<any, any>): void;
    addMessageListener(conf: EventListenerConfig<any, any, any, any> & {
        logWriter: LogWriter<any, any>;
    }): void;
    shutdown(callback?: ShutdownCb): Promise<void>;
}
export {};