import { IMessageBusService, MessageBusHandle, IMessageBusCallback } from '../..';
/** Helper class to manage message bus subscriptions/handles. Is used by Widget and Dashboard managers */
export declare class MessageBusManager {
    busHandlers: {
        [key: string]: {
            bus: IMessageBusService;
            handle: MessageBusHandle;
        };
    };
    start(): void;
    stop(): void;
    subscribe(bus: IMessageBusService | undefined, topic: string, callback: IMessageBusCallback, id?: string): void;
}