@Override
        public String toString() {
            return MoreObjects.toStringHelper(this)
                              .add("delegate", delegate)
                              .add("findCache", findCache)
                              .add("findAllCache", findAllCache)
                              .toString();
        }
A {@link Router} which is wrapped with a {@link Cache} layer.
core/src/main/java/com/linecorp/armeria/server/RouteCache.java