type Handler struct {
        // ...
	dispatcher             routing.WrapLinkDispatcher
        // ...
}

	handler := &Handler{
                // ...
		dispatcher:             v.GetFeature(routing.DispatcherType()).(routing.WrapLinkDispatcher),
                // ...
	}

	if request.Command == protocol.RequestCommandRvs {
		r, err := h.GetReverse(account)
		if err != nil {
			return err
		}
		return r.NewMux(ctx, h.dispatcher.WrapLink(ctx, &transport.Link{Reader: clientReader, Writer: clientWriter}))
	}