import { ApiBase } from './ApiBase';
import { IAdaptable } from '../../AdaptableInterfaces/IAdaptable';
import { EventApi } from '../EventApi';
import { EmitterCallback } from '../../Utilities/Emitter';
import { EventInternalApi } from '../Internal/EventInternalApi';
export declare class EventApiImpl extends ApiBase implements EventApi {
    private emitter;
    internalApi: EventInternalApi;
    constructor(_adaptable: IAdaptable);
    destroy(): void;
    on: (eventName: string, callback: EmitterCallback) => (() => void);
    off: (eventName: string, callback: EmitterCallback) => void;
    emit: (eventName: string, data?: any) => Promise<any>;
    emitSync: (eventName: string, data?: any) => any;
}