docs: public void setQueryable(String queryableStateName) {
  		Preconditions.checkArgument(
  			ttlConfig.getUpdateType() == StateTtlConfig.UpdateType.Disabled,
  			"Queryable state is currently not supported with TTL");
  		if (this.queryableStateName == null) {
  			this.queryableStateName = Preconditions.checkNotNull(queryableStateName, "Registration name");
  		} else {
  			throw new IllegalStateException("Queryable state name already set");
  		}
  	}