import { Client, AdsSymbolContainer, AdsClientSettings } from 'ads-client';
import { Server, Socket } from 'socket.io';
import { L33tADSPLC, L33tMemDB } from '.';
export declare class PlcManager {
    initAll: (memoryDB: L33tMemDB, io: Server) => Promise<void>;
    registerHandler: (io: Server, socket: Socket, memoryDB: L33tMemDB) => undefined;
}
export declare class AdsSocketHandler {
    client: Client;
    private io;
    private subscriptions;
    plc: L33tADSPLC;
    constructor(io: Server, adsConfig: AdsClientSettings);
    init(): Promise<void>;
    getSymbols(): Promise<AdsSymbolContainer>;
    readValue<T = any>(variableName: string): Promise<{
        value: T;
    }>;
    writeValue(variableName: string, value: any): Promise<void>;
    subscribe(variableName: string): Promise<void>;
    unsubscribe(variableName: string): Promise<void>;
    private unsubscribeAll;
    addBoundVariables(newVariables: string[]): Promise<void>;
    updateBoundVariables(boundVariables: string[]): Promise<void>;
}