export interface IXtbCredentials {
    userId: string;
    password: string;
    demo: boolean;
}
export interface IWebSocketResponse {
    status: boolean;
    returnData?: any;
    errorCode?: string;
    errorDescr?: string;
    streamSessionId?: string;
}
export interface ICommand {
    command: string;
    arguments: any;
    [key: string]: any;
}
export declare class WebSocketManager {
    private mainSocket;
    private streamSocket;
    private pingInterval;
    private streamSessionId;
    getStreamSessionId(): string | null;
    private readonly credentials;
    private readonly isDemo;
    constructor(credentials: IXtbCredentials);
    private getMainSocketUrl;
    private getStreamSocketUrl;
    connect(): Promise<void>;
    private waitForConnection;
    login(): Promise<IWebSocketResponse>;
    private startPingInterval;
    sendCommand(command: ICommand): Promise<IWebSocketResponse>;
    sendStreamCommand(command: ICommand): Promise<void>;
    onStreamMessage(callback: (data: any) => void): void;
    disconnect(): Promise<void>;
}