subscribe(fn: (v: typeof this) => void) {
        this.#subscribers.add(fn);
        return () => {
            this.#subscribers.delete(fn);
        }
    }
    /** Convenience method that wraps from() */
    signal() {
        return from(this, this);
    }

    subscribe(fn: (v: typeof this) => void) {
        this.#subscribers.add(fn);
        return () => {
            this.#subscribers.delete(fn);
        }
    }
    /** Convenience method that wraps from() */
    signal() {
        return from(this, this);
    }