Interface SubscriptionManager

interface SubscriptionManager {
    subscribe(
        command: SubscribeMessage,
        unsubscribes: Unsubscribes,
        errorCallback: (err: unknown) => void,
        callback: SubscribeCallback,
        user?: string,
    ): void;
    unsubscribe(msg: UnsubscribeMessage, unsubscribes: Unsubscribes): void;
}