import { ConnectionQuality } from '../entities/connection-quality';
import { ConnectionState } from '../entities/connection-state';
import { EventBus } from '../event-bus';
import { MessageQueue } from './message-queue';
export declare class ConnectionMonitor {
    private readonly eventBus;
    private readonly messageQueue;
    private readonly websocket;
    private pollingTimer?;
    private pollingPromise?;
    private internalConnQuality;
    private internalState;
    constructor(eventBus: EventBus, messageQueue: MessageQueue, websocket: WebSocket);
    get connectionQuality(): ConnectionQuality;
    set connectionQuality(quality: ConnectionQuality);
    get state(): ConnectionState;
    private set state(value);
    checkConnection(force?: boolean): Promise<void>;
    private lostConnection;
    private getConnectionQuality;
    private ping;
    close(): void;
}