import { Observable } from "@tmorin/ceb-messaging-core";
import { IpcEventBusNotificationMap, IpcObservableEventBus } from "./event";
import { IpcCommandBusNotificationMap, IpcObservableCommandBus } from "./command";
import { IpcObservableQueryBus, IpcQueryBusNotificationMap } from "./query";
/**
 * The observable view of a gateway merges the observable channel of all buses.
 */
export declare type IpcObservableGateway = IpcObservableCommandBus & IpcObservableEventBus & IpcObservableQueryBus;
/**
 * The map defines the internal events of all buses.
 */
export declare type IpcGatewayNotificationMap = IpcCommandBusNotificationMap & IpcEventBusNotificationMap & IpcQueryBusNotificationMap;
/**
 * Simple implementation of {@link IpcObservableGateway}.
 */
export declare class IpcGatewayObserver implements IpcObservableGateway {
    private readonly events;
    private readonly commands;
    private readonly queries;
    constructor(events: Observable, commands: Observable, queries: Observable);
    on<K extends keyof IpcGatewayNotificationMap>(type: K, listener: (event: IpcGatewayNotificationMap[K]) => any): this;
    off<K extends keyof IpcGatewayNotificationMap>(type?: K, listener?: (event: IpcGatewayNotificationMap[K]) => any): this;
}