code: func NewForwarder(ctx context.Context, router, service string, next http.Handler) http.Handler {
  	middlewares.GetLogger(ctx, "tracing", forwarderTypeName).
  		Debugf("Added outgoing tracing middleware %s", service)
  
  	return &forwarderMiddleware{
  		router:  router,
  		service: service,
  		next:    next,
  	}
  }
docs: // NewForwarder creates a new forwarder middleware that traces the outgoing request.