import SyncClient from "twilio-sync";
export declare const maxWorkersNumberFromInitialLoad = 200;
export declare class SupervisorService {
    private static instance?;
    private client;
    private workersLiveQuery?;
    private stickyWorkerLiveQuery?;
    private workerListeners;
    private activeFilterQuery?;
    private stickyWorker?;
    private stickyWorkerSid;
    private stickyTaskSid?;
    private lastStickyWorkerQueryUUID?;
    private taskFilter;
    static init(client: SyncClient): void;
    static destroy(): void;
    static getInstance(): SupervisorService;
    constructor(client: SyncClient);
    getActiveFilterQuery(): string;
    setActiveFilterQuery(query?: string, taskFilter?: string): Promise<void>;
    setStickyWorkerSid(workerSid?: string, taskSid?: string): void;
    unsubscribe(): void;
    private subscribeWorkersLiveQuery;
    private unsubscribeWorkersLiveQuery;
    private updateCurrentWorkers;
    private onWorkerTasksChanged;
    private loadInitialWorkers;
    private onWorkerItemUpdated;
    private onWorkerItemRemoved;
    private initStickyWorker;
    private unInitStickyWorker;
    private loadInitialStickyWorker;
    private onStickyWorkerUpdate;
    private onStickyWorkerRemoved;
}