export default class EventEmitter {
    private _handlers;
    private _listeners;
    protected _triggerEvent(event: string, ...args: any[]): void;
    addEventListener(event: string, listener: Function): {
        dispose: Function;
    };
    removeEventListener(event: string, listener: Function): void;
    subscribe(instance: EventEmitter, event: string, callback: Function): void;
    unsubscribe(): void;
}