static <T extends Weighted> UpdatableLoadBalancer<T> ofRampingUp(Iterable<? extends T> candidates) {
        requireNonNull(candidates, "candidates");
        return LoadBalancer.<T>builderForRampingUp(candidates).build();
    }
Returns a weight ramping up {@link LoadBalancer} which ramps the weight of newly added
candidates using {@link WeightTransition#linear()}. The candidate is selected
using weighted random distribution.
The weights of {@link Endpoint}s are ramped up by 10 percent every 2 seconds up to 100 percent
by default. If you want to customize the parameters, use {@link #builderForRampingUp(Iterable)}.
core/src/main/java/com/linecorp/armeria/common/loadbalancer/LoadBalancer.java