import { ConnectionEvent, ConnectionEventType, EventCallback } from '../types/events.types';
export declare class ConnectionEventBus {
    private static instance;
    private listeners;
    private constructor();
    static getInstance(): ConnectionEventBus;
    emit(event: ConnectionEvent): void;
    subscribe(eventType: ConnectionEventType, callback: EventCallback): () => void;
    subscribeToMultiple(eventTypes: ConnectionEventType[], callback: EventCallback): () => void;
    clear(): void;
}