export default class EventEmitter {
    _events: {
        [type: string]: Function[];
    };
    maxListeners: number;
    setMaxListeners(n: number): void;
    on(type: string, listener: Function): this;
    addListener(type: string, listener: Function): this;
    emit(type: string, ...args: any[]): boolean;
    once(type: string, listener: Function): this;
    removeListener(type: string, listener: Function): this;
    removeAllListeners(type?: string): this;
    listeners(type: string): Function[];
    listenerCount(emitter: EventEmitter, type: string): number;
}