public boolean similarTo(Object o) {
        if (!(o instanceof final ClusterState other)) { return false; }

        return similarToImpl(other, this::normalizedNodeStateSimilarTo);
    }
Parse a given cluster state string into a returned ClusterState instance, wrapping any
parse exceptions in a RuntimeException.
vdslib/src/main/java/com/yahoo/vdslib/state/ClusterState.java